Universal Plug and Play (UPnP), a common networking technology, is found vulnerable on several fronts, especially with respect to multiple buffer overflow vulnerabilities. The US Department of Homeland Security advises users to disable UPnP on their devices.

Ruby on Rails is found vulnerable to a new parsing attack, distinct from the flaws found earlier this month. A social engineering Trojan steals Facebook login credentials from players of Zynga Poker. Phony Windows 8 activators are stealing private information from those who download them.

HP disputes recent reports of printer vulnerabilities. Nonetheless printers that don't need Internet connectivity continue to open their networks to attack—they're often easy to locate through a simple Google search. Users are advised to secure them.

Alabama authorities release more information on the mid-January attack the state sustained, reassuring citizens that private information wasn't compromised.

The US economy unexpectedly contracted last quarter, and the news is expected to affect business purchasing, inventories, etc. The US Congress and Administration make little progress in avoiding budget sequestration, which the Pentagon regards as "more likely than unlikely." Michael Dell moves toward purchasing a controlling interest in his company. RIM renames itself "BlackBerry" as it launches BlackBerry 10. HP rolls out a suite of cyber security services.

Germany proposes requiring that search engines pay publishers for short blocks of text typically regarded as open to fair use.

The FBI intensifies its hunt for those who leaked information about Stuxnet last year. Congress asks Justice to justify its prosecution of Aaron Swartz.