Digital Playground hacked and other breaches

I read about this at Adult DVD Talk earlier in March and followed some links.

http://www.databreaches.net/?p=23518

"they got 72,000 customers’ details and over 44,000 credit card numbers, and DP had all this info in their servers in clear text, instead of encrypted. Shitty security". So far, they haven't published this database...
Digital Playground is operated by Manwin – the same firm that operates the Brazzers and YouPorn web sites that were recently in the news when they were hacked.

Databreaches dot net has some alarming info on attacks! No one is totally immune. Get a separate credit card for online stuff. If you're a member of DP, call your credit card company and request a new card number.

This is always a concern to me. Since this site was storing members' info in plain text (easily obtained and read) how can one know if their data is safe on other sites?