Microsoft on Tuesday released the first security update for Windows Phone 7, replicating for smartphone users a patch the company gave Windows desktop users six weeks ago.

When the update will actually reach users is unclear.

"At the time of release, the update is not available for all Windows Phone 7 customers," Microsoft said in a security advisory. "Instead, customers will receive an on-device notification once the update is available for their phone."

Tuesday's update is designed to blacklist nine digital certificates acquired by a hacker in March from Comodo, one of many companies that issues SSL (secure socket layer) certificates.

More: http://www.computerworld.com/s/article/9216391/