[Faccus] Yahoo! data breach – September 23

Darren Bondy darren.bondy at uwaterloo.ca
Fri Sep 23 11:26:11 EDT 2016

What is happening? The public is just finding out in September 2016 that there was a significant data breach at Yahoo! in 2014. Personal details of Yahoo! account holders, including password hashes, were leaked. Yahoo! reports approximately a half-billion accounts affected.  Since many members of the University of Waterloo community forward their email to Yahoo! accounts, IST strongly recommends that those affected change their Yahoo! passwords as soon as possible.

This breach affects Yahoo! users who created their accounts before 2015, and who have not changed those passwords since.

What should you do to protect yourself? Any person who has created a Yahoo! account before 2015 should change that account password as soon as possible.  Those who use Yahoo! for email should be especially prudent in changing their Yahoo! password since email accounts are often central to the password reset workflow for other websites.  Similarly, those who reuse the same password at other websites should change the password at those sites as well. To change your WatIAM password visit the WatIAM website: https://watiam.uwaterloo.ca/idm/user/login.jsp

It is recommended that you use a different password for each service that requires a login.
Questions or concerns? Contact the IST Service Desk, helpdesk at uwaterloo.ca<mailto:helpdesk at uwaterloo.ca>, ext. 44357 or the IST– Security Operations Centre, soc at uwaterloo.ca<mailto:soc at uwaterloo.ca>, ext. 41125.

Recipients of this message:  isthd, faccus, ist-staff, admin-support, ctsc, ucist, Bulletin, uwweb, SSO, MSC

Darren Bondy
Information Systems and Technology
(519)888-4567 x49525
University of Waterloo, Waterloo, ON

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