Board member Michael Brown will serve as interim CEO while maker of Norton antivirus software hunts for its second chief executive in two years.
Security firms and Google reported DOS attacks on Web sites of Vietnamese activists.
The security firm is confronting the ZeroAccess botnet, which is likely to have more than 1.9 million slave computers at its disposal for click fraud and bitcoin mining.
The security solutions provider is cutting about 1,000 positions this month, and another 700 in July, according to a report. The company calls those numbers "pure speculation" but doesn't share its own figures.
Symantec and Microsoft join forces to stop a botnet, and for the first time they provide clean-up tools directly to people with infected computers.
This type of scamware has jumped over the past year, both in number and variety, according to the security vendor.
Mega patent company Intellectual Ventures takes aim at security company Symantec yet again in a new lawsuit.
The security company's latest Threats Report shows a small decline in spam and a huge rise in the number of targeted attacks.
The hacks are apparently just the beginning of document dumps and defacements for its day of protest, the 5th of November, aka Guy Fawkes Day.
The new anti-malware utility joins other free options for OS X