Posts Tagged ‘Yahoo!’

Yahoo!, Dropbox and Battle.net Hacked: Stopping the Chain Reaction

Thursday, February 14th, 2013

Major security breaches occur in quick succession one after another. Is it a chain reaction? How do we stop it?

  • January 2012: Zappos hacked, 24 million accounts accessed
  • June 2012: 6.5 Million encrypted LinkedIn passwords leaked online
  • July 2012: 420,000 Formspring passwords compromised in security breach
  • July 2012: Yahoo! Mail hacked
  • August 2012: Dropbox hacked, user accounts database leaked.
  • August 2012: Blizzard Battle.net hacked, user accounts leaked.
  • September 2012: Private BitTorrent tracker hacked, passwords leaked by Afghani hackers
  • September 2012: Over 30,000 usernames and passwords leaked from private torrent tracker RevolutionTT
  • September 2012: IEEE admits password leak, says problem fixed
  • November 2012: Adobe Connect Security Breach Exposes Personal Data of 150K Users
  • November 2012: Security breach hits Amazon.co.uk , 628 user id and password leaked
  • November 2012: Anonymous claims they hacked PayPal’s servers, leaks thousands of passwords online
  • December 2012: 100 million usernames and passwords compromised in a massive hack of multiple popular Chinese Web sites
  • January 2013: Yahoo! Mail hacked (again).
  • February 2013: Twitter breach leaks emails, passwords of 250,000 users
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Secret Questions Are Vulnerable To Guessing Attacks, Study Says

Wednesday, May 20th, 2009

Although it is widely known that authentication via ‘secret’ questions is not secure, now we finally have statistical evidence to prove it. Microsoft Research and Carnegie Mellon University have conducted a study that measures how guessable answers to ‘secret’ questions are. The researchers looked at the questions used by AOL, Google, Microsoft, and Yahoo! in order to authenticate users who need to reset their forgotten passwords. The ability of users to memorize their answers was also questioned. (more…)