Reuters has shut down its instant messaging system after suffering an onslaught from a new Kelvir worm, the company confirmed on Thursday.
Microsoft on Tuesday in ths US released a slew of security patches, five of them critical, as part of its monthly update.
New research finds that IM-borne security threats have increased dramatically in volume since the start of 2005.
Should your company turn off instant messaging services?
Microsoft issued on Tuesday an update to its threat removal tool and announced plans to forgo this month's installment of its regularly scheduled patch release cycle.
Malicious attacks now come cloaked in messages that appear to have been sent by a known instant messaging contact -- even more reason to be wary.
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