“The need for security is expanding beyond the PC,” wrote Jonathan Singer, an analyst with the Yankee Group, in an e-mail to TechWeb. “Mobile devices such as smart phones and PDAs, which are often used for business purposes without security integration, are opening new avenues for malicious code,” he added.
Early efforts by hacker to engage these devices were relegated to using them as entry points for viruses and worms delivered via e-mail, but as networked handhelds proliferate, tactics have changed. As other devices become networked–such as printers and copiers–and as voice over IP (VoIP) hardware grows in popularity, they’ll be targeted too, or used to launch additional attacks.
“Look for these types of attacks to become pervasive in the next 12 to 24 months,” Singer said.
Behavioral-based anti-virus protection doesn’t rely on one-to-one signatures to match against known malicious code, but examines possible malware for characteristics common to viruses and worms. Among their advantages are a theoretical ability to recognize unknown viruses–thus providing a defense against so-called “zero-day” attacks–less frequent updating, and smaller size.
“In the next two to four years, anti-virus software will migrate from signature recognition to a hybrid of signatures and behavioral recognition,” predicted Singer.
Enterprises should set policies on PDA and smartphone use, said Singer, to protect the network first, make handhelds productive second.
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