Surfing, not spam, a bigger risk to company networks
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Businesses are more likely to pick up a virus via employee Web surfing than from e-mail attachments, according to an IDC study.
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Denial-of-service attacks and bots are the top threats to network security, according to Arbor Networks' second annual Worldwide Infrastructure Security Report. The survey compiled information from 55 network operators.
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Huge crowds in social networking sites draw money-minded malware authors.
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eWeek: Security partnerships and technology advances are making it increasingly safer to keep corporate data up in the air. To better fight the threat of wireless network subterfuge, Cisco Systems Inc.
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PALO ALTO, Calif. -- This scenario is all too familiar to office workers who collaborate electronically on projects: E-mails get passed around with differing versions of documents-in-progress attached. Instant messages whiz by. Websites are cited, then lost.
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A distributed denial-of-service attack that disrupted Web-based systems at credit card payment processing firm Authorize.NetÂ earlier this week is indicative of a sharp increase in the number of cyberattacks being targeted at specific companies and driven by profit motives on the part of the hackers who launch them.
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Security experts contend that a growing number of operators of compromised computer networks (or "botnets") are finding new ways to grow their networks and make them immune to potential shutdowns, including sophisticated fault-tolerance planning to help ensure that their networks can't be easily wiped out.ADVERTISEMENTIBM Information On Demand 2006Industrial Industry Leaders, please join us at IBM's premier information management global event, IBM Information On Demand 2006, October 15-20, Anaheim, CA. More IBM business and technical solutions content in one place than ever before! Select from  over 800 sessions. Register today!
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Analysis: Along with the melding of consumer technology with the corporate world, the introduction of Macintosh computers into corporate networks gives admins yet another concern to worry about.
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Worldwide spending on securing Web content is literally the hottest IT market today. With Web-based threats growing almost exponentially, IT and network managers are struggling mightily to stave off disaster while still letting employees reap the many benefits of the Web. The Webcast Barbarians At The Gate: Why Web Filtering Is So Hot, dives into the sources of the trouble while offering common-sense approaches to a secure Internet computing strategy.
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For all Wi-Fi has done to bring people online, it's also opened them up to potential risk.
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(InfoWorld) - The biggest threat to your personal and professional security may be the information that your computer is already transmitting to the world around you. Data leakage might be a hot topic, given the list of high-profile incidents reported by businesses such as TJX Companies -- through which reams of detailed consumer records have been exposed -- but most people are already broadcasting enough information from their laptops to allow hackers to aim targeted attacks at their devices and corporate networks, according to security researchers. In a presentation at the ongoing Black Hat DC 2007 conference being held in Washington, DC, from Feb. 28 to Mar. 1, experts with Atlanta-based services provider Errata Security outlined a trend they've labeled as "data seepage." The concept is based on the idea that people using Wi-Fi systems to connect their computers to the Web in public settings such as airport lounges or coffee shops are handing out enough personal clues to give attackers plenty of ammunition to make them the target of their malware or hacks. Using a software application they have designed dubbed Ferret, Errata chief executive Robert Graham and chief technology officer Dave Maynor demonstrated how easy it is to intercept seemingly innocuous information from people's devices as they connect to the Internet. They can then take that data to create a detailed profile of the individual, their Web usage, and even their employers' IT networks. During the course of their presentation, the security experts were even able to use Ferret to intercept an e-mail sent to a reporter working in another conference session that included one of her applications' passwords. Whenever a user connects to the Web via Wi-Fi, or even if their laptop's wireless systems are merely left turned on, someone using such a so-called sniffing tool can garner data about where the user has traveled, what type of operating system or applications they use, and who they may work for, Graham said. For instance, the expert said that while sitting in airlines' business customer lounges it's not hard to look at details offered up freely by the machines of other travelers using Wi-Fi. In doing so, Ferret can detect what hotspots the person has been through, giving an idea of their physical location; determine what e-mail servers or IM systems they attempt to access, lending an idea of their software and potentially their employer; and even scoop their IM contacts to determine who they communicate with. "With seepage, we're talking about the distribution information that you actually mean to broadcast but which hackers can take and exploit for their own needs," Graham said. "All you have to do is turn on your computer and we can tell a lot about you." For instance, computers made by Apple offer up details of what operating system someone is using when they turn their machines on or access Wi-Fi. If captured by a hacker, this could allow them to target specific malware attacks at the individual based on any known vulnerabilities in their version of the OS. In addition to data related to Web connectivity or operating systems, such tools can be used to detect what types of anti-virus applications users are running when the software programs attempt to automatically download updates. With the wide number of known vulnerabilities existing in anti-virus programs, a hacker could easily take that information and use it to craft a targeted attack, the experts said. The tools can even be used to garner similar data from smartphones and other data-centric handhelds, according to the researchers. The experts contend that when the U.S. government was piecing together information about suspected terrorists after the Sept. 11 attacks, investigators likely relied on the same types of data to figure out where various people had traveled, who they communicated with, and what they might have been looking at on the Internet. Consumers may be upset about retailers who collect and expose sensitive information or unchecked government wiretaps, but they are unknowingly handing over a range of data that could be used to track their movements, steal their money, or penetrate their employers' networks. "Just by going to a lounge in an airport with a sniffer like this, you can easily develop a profile that can be used to exploit any weaknesses," Graham said. "You can move from [intercepting] a low-level MAC address to capturing high-level information in a very short amount of time." To help people understand just how much information can be gathered using sniffers like Ferret, Errata is posting the source code for the tool on its Web site so that developers can try it for themselves. The best advice that the security experts offered to end-users to protect themselves is to use personal firewalls and VPNs to cloak as much of their information and activity as possible. "It's not single pieces of information that we're warning about, it's the collection of pieces of data that offer detailed information about who you are," Maynor said. "If the government were collecting this information people would be up in arms, but as it is, they are already giving it away without a second thought."
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This article discusses the discovery of compromised machines in large enterprise environments, and offers some suggestions on correlating NIDS and HIPS logs to avoid false positives.
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Walk into any large office, and you will most likely hear  the telltale computer bleeps of chat programs and online games,  accompanied by furious mouse-clicking. Employees may seem busy,  but many are wasting time on the Internet, or "cyberslacking."
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Think you can't afford best-of-breed spam and virus protection for your business? Here are two good reasons to think again.
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There is no question that IM is entrenched in the enterprise. More than 90 percent of businesses report IM activity, according to Osterman Research. A main reason, as we discovered in "Getting serious about enterprise IM," is the improved productivity and reduced communications costs that IM delivers. What should concern CIOs is that unsanctioned consumer IM networks -- such as those from America Online, ICQ, Microsoft, and Yahoo -- make up 80 percent of corporate IM use today, and the number of users of these unsecured IM networks is growing at a fast clip, according to The Radicati Group. True, public IM networks offer enterprises some protection, such as very basic identity control. But organizations are still exposed to a multitude of security risks, including viruses and breached firewalls.
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As the TJX Companies data leakage incident seeped its way further toward becoming the Exxon Valdez of corporate information spills this week, researchers reinforced the notion that businesses continue to make a mess of electronic data security because they fail to foster adequate internal communication.A new report from Ponemon Institute -- which has produced a series of studies into corporate data leakage over the last several years -- concluded that the various people in charge of collecting, protecting, and managing sensitive information inside large businesses typically don't collaborate sufficiently. Those constituencies also have widely differing views regarding their respective roles in safeguarding the content, the report contends.Echoing comments made by a number of security policy experts in recent months, the study highlights the fact that companies are likely failing to protect data based on broken business processes -- at least as much as they may be succumbing to complex technological challenges.Just as many software developers complain that their applications are left vulnerable to attack because business teams refuse to wait long enough for the programs' underlying code to be made secure, the results of Ponemon's survey of 3,600 IT security and marketing executives -- located in the United States, the United Kingdom, and Germany -- illustrate a distinct lack of organizational coordination in the name of protecting data.For instance, only 30 percent of the marketing workers interviewed for the study said they actually consult security teams before collecting and using sensitive information, while 80 percent of the IT security employees surveyed indicated a belief that they are typically involved in such decision-making.In addition, while only 53 percent of IT security workers surveyed said their companies have well-coordinated data protection policies, only 32 percent of those workers who handle the information said their employers are doing an adequate job. Some 45 percent of security workers don't feel that their data-handling rules get in the way of business objectives, while only 21 percent of the people using the content feel that such policies represent roadblocks to their productivity.And in yet another blow to the perceptions of security workers, only 21 percent of the marketers using sensitive information interviewed by Ponemon said that security teams play a leading role in defending the content.At the heart of the matter is the issue of poor collaboration between all the involved parties, according to the research firm. Only 29 percent of those interviewed said their companies' current policies would be adequate to handle a major breach within 24 hours of its occurrence.Based on the results, Ponemon contends that organizations with substandard data protection collaboration policies were twice as likely as to have had a data breach within the last two years.Therein lays the ultimate proof of collaboration's impact on data protection, said executives with Microsoft, which sponsored the research report."We expect the data threat environment to continue to evolve, and at the same time, clearly, there's a long way to go based on where we are today," said Brendon Lynch, director of privacy strategy at Microsoft. "There's this major issue around the degree to which marketing professionals consult with these other involved parties; they see the policies as getting in the way of business objectives, and they're not interacting with security or privacy specialists based on that, which undermines the process change that companies are already attempting to enact."As part of its connection with the study, Microsoft is pushing the notion that companies should merge their security and data privacy operations to simplify the process of interaction between the various constituencies.Some 80 percent of all respondents to the Ponemon study said that they would support further combination of those teams to improve coordination of their data defenses."We feel that most companies need to be more holistic and bring these types of roles together," said Lynch. "All of these workers are critically important to better locking down the data, so they need to look at developing appropriate-use cases, and how to better fulfill business objectives while maintaining protection."The study is just the latest expert opinion to highlight the fact that despite the ever-expanding range of security technologies available to enterprises to protect sensitive data, many organizations could be well served to start with a review of their internal policies.In addition to getting business teams to work more closely with security and privacy pros, some experts contend that organizations could improve security risks quickly by merely retrenching the settings of their network and IT systems.Many critical infrastructure systems are installed with the idea of getting an operation up and running first, with plans to bolster security after the fact, and never readdressed, said Paul Williams, chief technology officer at IT security services provider Global Security Management.Reviewing networking gear settings to ensure that they have been sufficiently obscured, along with tweaking the features of other systems crucial to protect external attack is another way that companies can significantly bolster data security with little to no capital investment, he said."Before you learn how to defend a network, you have to take a walk on the wild side and see how you can break in yourself," said Williams. "Most networks can be made more secure by simply taking the time to go back and see how things were installed and whether or not the settings were changed in a way that promotes security; people typically look to technology solutions to address these problems, but they could begin helping themselves significantly at relatively no cost."In a presentation delivered at the Gartner IT Symposium earlier this month, analyst Neil MacDonald told attendees of the show that they could save money on their security projects if they continue to push for a more thorough, process-driven approach to data protection on a high level within their organizations."This can't be about managing a set of projects, it has to be about improving process," MacDonald said. "At the end of the day, the idea of tagging every piece of data in an enterprise for the sake of protecting it is unfeasible; it sounds great on paper, but the problem is a monumental effort with new information coming in all the time, it's not a process that's sustainable."
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Symantec's primary strategy in the enterprise may currently revolve around the notion of IT risk management, but the company's latest research finds that efforts to refine corporate process unrelated to security technology have become just as popular with customers moving to limit their exposure.According to Symantec's annual survey of 405 businesses, the notion that technologies used to improve IT security serve as the most vital element of corporate risk management currently ranks below other priorities among customers. Respondents to the study rated IT availability management and work on specific regulatory compliance projects as comparable, and in some cases more important, to their ongoing risk mitigation efforts.In addition, fewer businesses are utilizing a strategy that approaches IT risk as a standalone skill set or initiative, according to the Symantec report.One year ago, customers participating in the study indicated that the adoption of security technologies represented the central tenet of their risk management plans. In the 2008 report, 78 percent replied that availability maintenance concerns are now as vital to their exposure mitigation efforts as the installation of security tools.Some 70 percent of respondents replied that security projects are still a critical part of their approach. However, 53 percent of the IT-related incidents experienced by surveyed companies were tied to other issues besides problems with systems defense."IT risk doesn't necessarily equate to security risk. That's a big shift and the key takeaway is that organizations are getting more mature around the portfolio of risks they have to manage," said Samir Kapuria, managing director of Advisory Services at Symantec. "In the past, people looked at one area as discreet, but now they're addressing the four pillars of compliance, security, risk, and performance availability as part of a balanced strategy."Increasing interdependence on IT systems shared between business partners has elevated availability and performance concerns above security issues -- and businesses are more worried about causing a bottleneck in their global supply chain then they are looking to thwart attacks, the expert contends."IT systems availability can have a downstream impact which has had this downward effect," Kapuria said.Spending on compliance-oriented projects also stands as a major piece of most companies' plans, with 68 percent of those people responding stating that their employers rate those efforts as crucial to their risk management strategies.Respondents indicated that high-level risk management projects have become less central to their IT planning, with companies favoring targeted initiatives that address individual problems or regulations.In terms of the participants' expectations to avoid and prevent IT breakdowns, 69 percent said they believe they will encounter at least one minor incident per month, with 63 percent predicting a major IT failure at least once a year.Some 26 percent indicated they expect a failed regulatory compliance incident at least once annually, and 25 percent said that they will experience a data loss event every 12 months."This speaks volumes to the confidence that people have about their overall IT risk posture," said Kapuria. "Part of the problem is that people only do assessments on a bi-annual basis, or they might inventory their assets sporadically; that gap is what often leads to exposure in availability, security, compliance, or performance." All the individual projects involved need to be managed on an ongoing basis, he said.However, the process remains a moving target. Increased adoption of mobile devices and other distributed enterprise trends continue to boost data and compliance risks, while business practices -- including fast-paced mergers and acquisitions -- introduce greater complexity, Kapuria said.More than technological efforts, the Symantec report contends that companies may see faster returns in improving their risk status through greater investment in employee risk education and training.Only 43 percent of respondents rated their training and awareness programs as more than 75 percent effective, showing that companies are well aware of their current shortcomings, Kapuria said. The report shows a decrease of over 50 percent in companies' confidence about their training programs, compared to the year ago survey."The area where most people need to focus on is classifying their data, what it's used for, and what its sensitivity may be," said Kapuria. "Rather than just throwing technology at their problems, companies need to assess, and then apply the appropriate availability, security, and compliance requirements."