Web hacking campaign

Hackers have launched a massive Web hacking campaign, putting malicious links on as many as 10,000 servers, security vendor Kaspersky Lab warned on Friday.

"We’re estimating that in the last two days alone, between 2,000 and 10,000 servers, mainly Western European and American ones, have been hacked," Kaspersky wrote on its Web site Friday, "It’s not yet clear who’s doing this."

The attackers are most likely using compromised accounts on the Web sites or launching what's known as a SQL injection attack, in which hackers trick Web sites' software into inadvertently running malicious commands.