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With no easy and reliable alternative to passwords in sight, you either have to memorize cryptic passphrases or use a password manager to access networks, systems, and online services.
Comcast customers whose computers are communicating with a known botnet control server will be alerted by the ISP.
Latest report on attacks targeting Google and others calls it just another "old school" botnet.
The botnet software is designed to download and install other malicious packages under a "pay-per-install" scheme, according to security company Damballa.
In the war with online scammers, security vendors like AVG and Damballa are increasingly turning to software that monitors behavior of code rather than its signature.