Showing posts with label Security. Show all posts
Showing posts with label Security. Show all posts

Monday, January 26, 2009

Internet Explorer 8 Focuses on better Security and Privacy

Some of the features of liberate Candidate 1, now existing to the public, are similar to functionality that’s already included in Firefox 3.
Microsoft's updated browser, Internet Explorer 8, promises an assortment of new features designed to help make Web browsing with IE safer, easier, and more compatible with Internet standards. We looked at the first release candidate of the new browser released to the public today, Release Candidate 1 (RC1). On the surface, IE 8 seems to be a lot like IE 7, but Microsoft has made a number of changes under the hood. You may have seen some of these new features already, however, in IE's no-longer-upstart competitor, Mozilla Firefox 3.
Tabbed Browsing

If you accidentally close a browser window in IE 8, you can opt to restore it when you reopen the program (just as you can in Firefox). IE 8 will use color coding to group related tabs together. If you open a link from pcworld.com in a new tab, for example, it will open adjacent to the original tab, and the tabs themselves will have a matching color. You can move tabs from one group to another, but if you have three unrelated pages open, you cannot create a group out of them.
Perhaps the most novel addition in IE 8 is what Microsoft calls tab isolation. The feature is designed to prevent a buggy Web site from causing the entire Web browsing program to crash. Instead, only the tab displaying the problematic page will close, so you can continue browsing.
Of course, IE 8 RC1 retains some of the features introduced in the first beta, including WebSlices and accelerators; see "Updated Web Browsers: Which One Works Best?" for more details.
Searching

IE 8 can use multiple search engines besides Windows Live Search, and you can add other search engines to the mix. Also, IE 8 will give you search suggestions as you type. For example, I can type in 'PC World' into the search field, and IE 8 RC1 will give me Live Search suggestions such as 'pc world magazine' or 'pc world reviews'. In addition, IE 8 lets you switch between search engines on the fly by clicking an icon at the bottom of the search field's drop-down menu. IE 8 can search Yahoo and Ask.com, and you can install add-ins that give IE 8 the capability to search Wikipedia, Amazon, and the New York Times, among other sites.
Improved Security
Microsoft touts IE 8 as its most secure browser to date, and Microsoft has indeed added a good number of security features to the mix, ranging from phishing detection to private browsing, plus a new feature to prevent clickjacking, an emerging data theft threat.
IE 8 RC1 includes two security features under the 'InPrivate' label: InPrivate Browsing and InPrivate Filtering. Both existed in earlier prerelease versions of IE 8, but IE 8 RC1 lets you use the two features separately, whereas before each relied on the other.
If you enable IE 8's InPrivate Browsing feature, the browser will not save any sensitive data--passwords, log-in info, history, and the like. Afterward it will be as if your browsing session had never happened. This feature is very similar to Private Browsing in Apple's Safari browser, except that an icon in IE's address bar makes InPrivate Browsing's active status more obvious.
InPrivate Filtering--called InPrivate Blocking in earlier IE 8 builds--prevents sites from being able to collect information about other Web sites you visit. This feature existed in IE 8 Beta 2, but you could use it only while using InPrivate Browsing. In RC1, you can use InPrivate Browsing at any time.
The browser's phishing filter--called SmartScreen--improves on its predecessor's filter with such features as more-thorough scrutiny of a Web page's address (to protect you from sites named something like paypal.iamascammer.com) and a full-window warning when you stumble upon a suspected phishing site. SmartScreen relies largely on a database of known phishing sites, so new, unknown phishing sites may slip through the cracks.
IE 8 displays sites' domains in a darker text color, so you can more readily see whether you're visiting a genuine ebay.com page, say, or a page simulating an eBay page on some site you've never heard of. Microsoft could still put a little more emphasis on the domain name (using a different color background, for example), but the highlighting is a welcome addition.
Finally, IE 8 RC1 includes a feature designed to prevent clickjacking, a method in which Web developers insert a snippet of HTML code into their Web page code to steal information from Web page visitors. When you use IE 8 to view such a page, IE 8 can identify an attempted clickjacking and will warn you of the attempt.
Web Compatibility
Creating a site that looks identical in Internet Explorer, Firefox, and Safari can be a challenge. IE 8 Beta 2 offers better support for W3 Web standards--a set of guidelines developed to ensure that a Web page appears the same in all browsers. The downside is that IE 8 will break some pages designed for earlier Internet Explorer versions.
To counteract this problem, Microsoft has added a compatibility mode: Click a button in the toolbar, and IE 8 will display a page in the same way that IE 7 does. In my testing, I found that most pages worked fine with the standard (new) mode, and that most errors were minor cosmetic ones. Unfortunately, the Compatibility Mode toggle button may not be obvious to most users, because it's pretty small; a text label would have helped.
Though it probably won't convince many Firefox users to jump ship, Internet Explorer 8 Release Candidate 1 shows promise, and may be worth considering for people who have not yet solidified their browser loyalties. (Keep an eye out for our report on the final release of IE 8.)
See more like this: internet explorer, browser security, online privacy.
more....
Microsoft on Monday released a near-final "release candidate" version of Internet Explorer 8, the next version of its Web browser.
The software maker plans to say more on its Web site around noon, but, as noted by enthusiast site Neowin, the code is already available from Microsoft's download center.


With IE 8, Microsoft is hoping to regain some lost ground by adding features such as private browsing, improved security, and a new type of add-ons, called accelerators.
On the security front, Microsoft is adding a cross-site scripting filter, as well as protections against a type of attack known as clickjacking.
In an interview, IE General Manager Dean Hachamovitch said there will be little change between the release candidate and the final version, though he declined to say when the final version will be released.
"The ecosystem should expect the final candidate to behave like the release candidate," Hachamovitch said.
Internet Explorer 8 will work with Windows XP (Service Pack 2 or later) and Windows Vista. A version of IE 8 is also being built into Windows 7.
However, the IE code in Windows 7 is a pre-release candidate version.
"Windows 7 enables unique features and functionality in Internet Explorer 8 including Windows Touch and Jump Lists which require additional product tests to ensure we are providing the best Windows experience for our customers," the software maker said in a statement. "Microsoft will continue to update the version of Internet Explorer 8 running on Windows 7 as the development cycles of Windows 7 progress.






Saturday, January 24, 2009

Keep Your laptop data safe,now fix it.

Follow InfoWorld's encryption-based data-protection plan, which can safeguard your most at-risk PCs .
The largest single type of security breach is the stolen or lost laptop, according to the Open Security Foundation, yet these computers are among the least protected of all IT assets. The costs of a data breach can be huge, including the loss of trade secrets, marketing plans, and other competitive information that could have long-term business damage, plus the immediate costs of having to notify people if their personal information was possibly at risk from the breach. Particularly in a recession, enterprise management can't afford to take these risks lightly.

There is a way for IT to protect those laptops and the confidential information they contain: encryption. Without the combination of password security and encryption, any halfway-competent hacker has no problem siphoning hard drive contents and putting it to nefarious use.
[ Stay up to date on key security issues and solutions in InfoWorld's Security Adviser blog. Keep abreast of the latest mobile developments in the Mobile Pulse blog. ]
Perhaps the most important advantage of full disk encryption, though -- beyond the peace of mind it gives your business's lawyers -- is the "safe harbor" immunity that accrues under many data privacy regulations. For example, credit card disclosure rules don't apply to encrypted data, and even California's strict data-disclosure statute makes an exception for encrypted records -- provided you can prove they're encrypted. That's trivial with full disk encryption but not so easy with partial encryption techniques, which depend on user education for safe operation.
A key challenge for IT in deploying encryption on its laptops is the sheer number of encryption options available. Some Windows Vista editions, as well as the forthcoming Windows 7, support Microsoft's built-in BitLocker encryption, and numerous third-party encryption products cover the range of mobile operating systems from XP through Windows 7, Linux, and Mac OS X. Encryption granularity is widely variable as well, ranging from protecting individual files to encrypting virtual disks to deploying fully armored, hardware-based full disk encryption. Prices range from free to moderately expensive.
If you've put off laptop data security due to perceived technical shortcomings or high costs, you need to take another look at the field -- before you lose another laptop.

The maximum encryption protection possible: TPMIdeally, you'll deploy the full-metal-jacket approach to laptop data protection: full disk encryption using the Trusted Platform Module (TPM) technology. If you can afford the cost, waste no time with inferior methods. All you need is a laptop containing a TPM security coprocessor and, optionally, an encryption-enabled hard drive from one of the major hard drive manufacturers.
The TPM is a chip soldered on to the laptop's motherboard, providing hardware-based device authentication, tamper detection, and encryption key storage. The TPM generates encryption keys, keeping half of the key information to itself, making it impossible to recover data from an encrypted hard drive apart from the computer in which it was originally installed. Even if an attacker gets the user's part of the encryption key or disk password, the TPM-protected drive's contents can't be read when connected to another computer. Further, the TPM generates a unique digital signature from the motherboard in which it's embedded, foiling attempts to move the TPM chip itself to another machine.

TPM-enabled full disk encryption, especially hardware-based implementations of it, provides one other key benefit to enterprises: data erasure upon laptop decommissioning or repurposing. A common bugaboo in the enterprise is the accidental disclosure of data when seemingly worthless outdated laptops are discarded or sold, or transferred to another employee. Erasing sensitive information in such situations is not trivial, and even removing and physically mangling a laptop's hard drive is no guarantee against disclosure. However, because TPM has absolute control over the encryption keys -- remember, half of the key information is stored with the TPM itself -- you can simply tell TPM to forget its keys, and the hard drive is instantly reformatted and effectively rendered nonrecoverable. Disk sectors aren't zeroed, but no computationally feasible method exists today to decrypt the residue.

A great many enterprise-class laptops manufactured in the last two to three years shipped with embedded TPM chips; Apple's Macs are a key exception, as none since 2006 include a TPM chip. But the TPM chips must be explicitly enabled to use them as the authentication mechanism for encryption.
If your laptops have a TPM chip, don't try enabling it without carefully following the vendor's instructions -- otherwise, you could accidentally wipe out the laptop's hard drive. Before enabling the TPM chip in a laptop, you must first take ownership of it, a process that establishes user and management-level passwords and generates the initial set of encryption keys. The management password lets IT administration monitor the inventory of TPM devices, recover lost user passwords, and keep track of usage.
A TPM works with the laptop's resident operating system to encrypt either the entire hard drive or most of it, depending on the OS encryption implementation. (Microsoft's BitLocker, for example, requires a small, unencrypted initial-boot partition). Alternatively, a TPM can interoperate with encryption-enabled hard drives to perform encryption entirely outside of, and transparent to, the operating system.
The TPM technology isn't perfect, but it provides very solid protection in the most common incident, where a laptop is lost or stolen and the user has not left it logged in. If the laptop is powered off, TPM protection is absolute. Most implementations use 256-bit AES encryption, which is considered uncrackable for the foreseeable future. Powering up the device requires entering pre-boot credentials in the form of a password, a PIN, a smartcard, biometric data, a one-time-password token, or any combination of these. If the lost laptop is powered on (but not logged in), or just powered off, an attacker would have to use extraordinary procedures to recover the encryption keys from live memory.
However, if a lost device is powered up and logged in, a TPM provides zero protection. An interloper can simply dump the data off the hard drive in the clear using ordinary file copies. Thus, it's essential that TPM-protected systems have noncircumventable log-in timeouts using administrator-protected settings.

To achieve the ultimate in full disk encryption protection requires hardware-enabled encryption on board the hard drive. Drive-based encryption closes all of TPM's loopholes, since the encryption key is no longer stored in OS-accessible memory. Hardware-based full disk encryption also eliminates the performance penalty incurred by software-based full disk encryption, although with today's fast, processors, that software encryption overhead is not noticeable to most users.

The cost for TPM protection starts at zero for Microsoft's BitLocker, which is built into Vista Enterprise and Ultimate, Windows Server 2008, and the forthcoming Windows 7. Major laptop manufacturers also sell software bundles that enable TPM in any Windows version, including XP, such as Wave's Embassy Trust Suite and McAfee's SafeBoot. The advantage of bundled software is sole-source support and pre-tested configurations.
You can also roll your own software protection using stand-alone packages such as PGP Whole Disk Encryption.
All these products support a wide range of enterprise-class management tools that let you enforce uniform policies and centrally store encryption keys, including special data-recovery keys that solve the problem of lost passwords and prevent employees from locking employers out of their hard drives.

If you can't do TPM, here's your plan B for encryptionAlthough the deployment of TPM-based full description is ideal, you may count the cost of full disk encryption and come up short-funded, especially if you just refreshed your enterprise laptops with non-TPM models. Forklifting your entire laptop population is an undeniably expensive proposition, as is replacing the non-TPM laptops if your company has a mix of TPM and non-TPM laptops. If you can't go all TPM, there's a plan B that can give you much of the encryption benefits you need.
You might think that plan B involves partial disk encryption, typically deployed by designating specific folders on a laptop as encrypted; as files are moved into that folder, they are automatically encrypted. Apple and Microsoft have long offered this form of encryption, via FileVault on the Mac and the Encrypted File System tools in Windows XP and Vista. But this approach has a major flaw: It depends on users to properly store sensitive data only in encrypted form.

A variation of folder-level encryption is virtual disk encryption (VDE), in which a single disk file contains a virtual disk image that the user can mount when needed; this virtual disk collects all sensitive files in one location. Microsoft's BitLocker offers this feature in all Vista editions, as well as in Windows Server 2008 and Windows XP. Third-party products such as PGPDisk and even free open source software programs such as TrueCrypt have VDE capabilities. Many of these third-party utilities are easier to use than BitLocker, so they can save you some implementation expense.
Another form of partial disk encryption is to apply encryption to specific files, typically those residing on corporate servers that users want to open locally. In this approach, users must enter a password every time they open a protected file. IT not only is on the hook to ensure that all sensitive files get encrypted but also has no way to stop users from simply saving the opened file as an unencrypted copy. Still, this protection is better than nothing and is widely available via free disk utilities. But key management can be a problem, and these file-level encryption tools generally don't support multifactor authentication.

But the best plan B to TPM-enabled full disk encryption isn't any of these partial disk methods. The best plan is software-only full disk encryption, in which either the operating system or a third-party program performs the same encryption as with TPM but uses another method to store the encryption keys, such as a thumb drive or a smart card.

The good news is that virtually all-TPM full disk encryption suppliers' offerings, including BitLocker, can operate in this software-only mode, which relies on a removable hardware token so that you can use this approach for your non-TPM devices while having a consistent encryption method to manage across all your laptops.
It's true that software-based full disk encryption is less secure than if you have a TPM-equipped laptop: The entire drive can still be encrypted, but a determined hacker will have more opportunities to gain access through compromised keys. For example, if the key-storage token is left with the notebook computer (how likely is that?), the hacker may be able to simply plug the token in and gain access to the drive contents. Even multifactor authentication in this scenario is subject to attack by inspection, since the key token is not tightly bound to the system motherboard.
Still, when TPM-enabled encryption is not an option, pure software full disk encryption can still give you considerable peace of mind, as well as provide the "safe harbor" benefits afforded encrypted systems in data-privacy regulations. Software full disk encryption solutions have also been around long enough that they're available for most mobile computing platforms, including Linux and Mac OS X.
TPM technology changes to comeAlthough TPM full disk encryption with hardware-based encryption in the hard drive is the best you can do for data protection today, security researchers are constantly testing TPM's mettle and devising improvements to it.
One potential vulnerability of today's separate TPM chip implementation is that keys must be transported across conductors in the motherboard to the CPU for software-based full disk encryption, or to the hard drive for hardware-based full disk encryption. That could provide an entry point for a hacker. That's why a major vendor trend is to move all TPM-oriented data manipulation on to the CPU chip set in the form of customized silicon. Intel has advertised its vPro solution, which is part of the upcoming Danbury processor and Eaglelake chip set. This feature will perform all encryption and decryption for SATA and eSATA drives without involving the CPU, OS device drivers, or even the hard drive itself.

Such an approach could make TPM even more secure. But there's no reason to wait until such chips are standard in laptops. With today's TPM-equipped laptops, and with the software-based fallback option for non-TPM laptops, you have a platform for a consistent, manageable, secure deployment strategy.




Monday, October 8, 2007

Microsoft :The company's new Web site, HealthVault, is it trusted


New day new technology new service, security , trust
Microsoft has long been labeled an enemy of the people--the company you didn't even trust with your PC's serial number. Now the new Microsoft, led by philanthropist Bill Gates, hopes you will entrust your medical records with it.

The company's new Web site, HealthVault, aims to be a central repository for consumers to store their personal health data so that they can share it more easily with doctors and other medical professionals. The idea has become a sort of medical care holy grail: Current recordkeeping is a mishmash of files. Chronic care patients can wind up taking multiple medications prescribed by doctors who may be unaware of one another. Care of critically ill patients gets mismanaged because doctors can't find the right records.

But can Microsoft (nasdaq: MSFT - news - people ) solve this? Microsoft, the company whose personal computer software is regularly attacked by hackers, the company reprimanded by governments for its aggressive monopolistic behavior?

"Those are the same questions I asked," says Peter Neupert, the Microsoft vice president in charge of the company's health group. This is Neupert's second stint at Microsoft: He left in 1998 to start Drugstore.com, which went public a year later. He has since served on presidential commissions on health care. But he wanted to do more than just analyze the problems, and convinced Microsoft Chief Executive Steve Ballmer two years ago take him back. "I told him I had this passion and wanted to go back to work. I finally persuaded him it was a good idea."

Neupert figured health care could only be solved by a brand big enough to be recognized around the world. Given the complexity and scale of the health care problems, "even to move the needle takes something like a Microsoft, a company with patience, with an ability to get partners, build infrastructure and, quite frankly, financial strength," Neupert says. "Who are mom and dad going to feel comfortable sharing private data with? The government? No. The insurance industry? Statistics say 87% of consumers don't trust their health plan. Some under-funded no-name organization?" Worldwide, Microsoft is one of the best-known brands, he notes. "I think we have a pretty good shot."

He has lots of competition. In particular, Google (nasdaq: GOOG - news - people ) has been exploring a health care initiative. That program slowed recently when the executive leading the program left Google. Insurance companies, including Aetna (nyse: AET - news - people ), UnitedHealth Group (nyse: UNH - news - people ) and WellPoint (nyse: WLP - news - people ), also have medical recordkeeping systems under way.

There is no shortage of skeptics for a dozen reasons. "The concept behind it is dead on track, but it won't work very well" without a better way to integrate data from local doctors, predicts medical data guru Brent James, vice president for research at Utah's Intermountain Healthcare. The bottleneck, he says, is that there is no universal way to get blood test results, imaging scans and other basic data from thousands of local doctors and labs onto the Web.

"The intercommunications don't exist to get the data from where they now live into this central format and back out again to the physicians and nurses who would use them," James says.

Neupert agrees. "Hospitals, data devices, pharmacies, labs--we need to connect them all because the current situation is just too fragmented and siloed." As a starting point for pulling together data, Microsoft says it is working with 40 partners, including the New York-Presbyterian Hospital, the Mayo Clinic, Johnson & Johnson and the American Heart Association, to provide content and applications for the sites. It also is working with device companies on applications that will allow readings to move directly from a range of diagnostic instruments--such as blood pressure cuffs and diabetic glucose monitors--to HealthVault.

Microsoft argues that HealthVault can avoid the countless security problems that have afflicted its operating systems. "It's an apples and oranges comparison," he asserts. "It's a lot easier for us to manage a service for reliability, security and privacy than it is to manage hundreds of millions of distributed personal computers." Microsoft is working with two hacker organizations to test the security of its system.

Although HealthVault will be free for consumers, this is no philanthropic effort. Microsoft hopes HealthVault will translate into more search revenues through targeted health-related ads. The site includes an improved online search that uses a machine-learning algorithm to help consumers search through articles on health issues by breaking broad topics into concrete subcategories.

"By providing a great health search experience, we will actually improve the search loyalty of Microsoft overall," says Sean Nolan, the Microsoft programmer who designed the site. He admits though that moving into the medical record arena "is a huge crazy challenge." Among other issues, Microsoft will have to tiptoe the line between assuring people their information is private--and serving up advertisements relevant to the health problems they have.

James says Microsoft's move into health care is reminiscent of dot-com companies who tried to develop medical records in the 1990s and stalled because they didn't control the data. "It is the same old great idea but the devil is in the details," he says. At least Microsoft has lots of money and technical expertise, he says.

Neupert says the potential "life-saving benefits" of a good electronic records system are worth the business risks. He ticks off what Microsoft needs to make the system real: Sign up medical partners who can start providing patient data, put privacy principles in place, work with hackers to test the system and so on. It's a long list.

The one virtue that even its critics concede to Microsoft is patience. It will need it.

Friday, August 3, 2007

Diebold Voting Machines Vulnerable to Virus Attack



Diebold Election Systems Inc. voting machines are not secure enough to guarantee a trustworthy election, and an attacker with access to a single machine could disrupt or change the outcome of an election using viruses, according to a review of Diebold's source code.
"The software contains serious design flaws that have led directly to specific vulnerabilities that attackers could exploit to affect election outcomes," read the University of California at Berkeley report, commissioned by the California Secretary of State as part of a two-month "top-to-bottom" review of electronic voting systems certified for use in California.
The assessment of Diebold's source code revealed an attacker needs only limited access to compromise an election.
"An attack could plausibly be accomplished by a single skilled individual with temporary access to a single voting machine. The damage could be extensive -- malicious code could spread to every voting machine in polling places and to county election servers," it said.
The
report, titled "Source Code Review of the Diebold Voting System," was apparently released Thursday, just one day before California Secretary of State Debra Bowen is to decide which machines are certified for use in California's 2008 presidential primary elections.
The source-code review identified four main weaknesses in Diebold's software, including: vulnerabilities that allow an attacker to install malware on the machines, a failure to guarantee the secrecy of ballots, a lack of controls to prevent election workers from tampering with ballots and results, and susceptibility to viruses that could allow attackers to an influence an election.
"A virus could allow an attacker who only had access to a few machines or memory cards, or possibly to only one, to spread malicious software to most, if not all, of a county's voting machines," the report said. "Thus, large-scale election fraud in the Diebold system does not necessarily require physical access to a large number of voting machines."
The report warned that a paper trail of votes cast is not sufficient to guarantee the integrity of an election using the machines. "Malicious code might be able to subtly influence close elections, and it could disrupt elections by causing widespread equipment failure on election day," it said.
The source-code review went on to warn that commercial antivirus scanners do not offer adequate protection for the voting machines. "They are not designed to detect virally propagating malicious code that targets voting equipment and voting software," it said.
In conclusion, the report said Diebold's voting machines had not been designed with security as a priority. "For this reason, the safest way to repair the Diebold system is to reengineer it so that it is secure by design," it said.
The Diebold source-code review and several other documents, including a review of source code used in other voting systems, had earlier been withheld from release by the Secretary of State, even as other reports related to the review of voting machines were released on July 27.
An explanation posted on the Secretary of State's
Web site on July 27 noted the source-code review and other reports had been submitted on time. "Their reports will be posted as soon as the Secretary of State ensures the reports do not inadvertently disclose security-sensitive information," the Web site said.
The delayed release of the source-code review meant that David Wagner, an associate professor of computer science at the University of California at Berkeley and an author of the report, was not able to present his findings at a public hearing held on July 30 to discuss the results of the voting system review
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Study: Florida Voting Machines Still Flawed

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It's not exactly a vote of confidence for Florida's optical scan voting machines, the ones that helped to replace those punch-card ballots with their notorious hanging chads. A government-ordered study finds the optical scan machines are still flawed, despite efforts to fix them. What's more, the machines are subject to potential tampering by poll workers. Florida Secretary of State Kurt Browning has asked Diebold Elections Systems to address the problems by August 17th. He's expressing confidence the company will do so before next year's primary election. A company spokesman says the deadline will be met. Currently, 15 of Florida's 67 counties use paperless touch-screen voting machines, while the rest use optical scan machines. Touch-screen machines are being scrapped because of a newly signed state law that requires a verifiable paper trail for all voting machines.