Loyalty program password breaches

While we've read and know of the PC Plus account password breaches (does not seem to point to how they are carried out to access members' points), did you know that Canadian Tire has blocked online account access this week due to a tip?

Quote:

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TORONTO — Loblaw is warning PC Plus rewards collectors to beef up their passwords after points were stolen from some members' accounts."We are treating this as a breach as individual member accounts were accessed and points were stolen," Kevin Groh, the company's vice-president of corporate affairs and communication, said in a statement.
Meanwhile, Global News reported that Canadian Tire shut down customer access to online accounts this week in the interest of protecting their personal information.
"We recently noticed unusual traffic on our website and suspended customer sign-in capabilities while we investigate," communications manager Stephanie Nadalin told Global, which said it had been alerted to the problem by an unnamed customer.

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http://www.thespec.com/news-story/71...nge-passwords/