Trapster, a site that warns iPhone, Blackberry and Android phone users of speed traps is now warning its 10 million or so users that their passwords and email addresses have been compromised.

Traptser stated on its blog that We believe it's best to be cautious. So, if you've registered your account with Trapster, then it's best to assume that your e-mail address and password were included among the compromised data.

It alerted its users to change their passwords and also stated that if they have used the same password in other websites they should change them specifically if they used it in conjunction with email IDs provided on Trapster. 

Trapster is the creator of the famed free app for iPhone that alerts drivers of speed traps and red alert cameras. Basically, users submit speed traps, enforcement cameras, and road hazards that then alert all Trapster users in the area. The website claims to have reported more than 3 million traps.

Traptser's mishap with data follows Gawker's tryst with data compromise in December 2010. However, Trapster's gaffe is larger in terms of data pilfered, as Gawker reported more than 200,000 email addresses and passwords compromised. The hackers had downloaded details of more than 1.3 million users from Gawker servers but had decrypted only 200,000.

Also, recently China's Global Times reported that 50,000 hacked Apple iTunes accounts were on sale in China for $5 to $30 on taobao.com. The only restriction was that any download was to be made within 24 hours of the transaction before the original account holder monitors any unusual activity. Also when the account was accessed, the credit card details of actual user with billing address in US were displayed.

In the wake of such reports of personal data hacking, US authorities are coming hard on hackers, as revealed by the recent arrest of Andrew Auernheimer and Daniel Spitler, who were charged with hacking into AT&T database to siphon email addresses of iPad users.