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Ashley Madison offers $378K reward to find hacker

Homepage of the Ashley Madison website on an iPad.
Chris Wattie | Reuters
Homepage of the Ashley Madison website on an iPad.

After having gigabytes upon gigabytes of confidential customer information stolen and posted online, cheating website AshleyMadison.com isn't rolling over.

The Canada-based company—whose tagline is "Life is short. Have an affair"—is offering $378,000 for information leading to the prosecution of the individual or group involved, first reported by Krebs on Security.

Read More Adultery site Ashley Madison hacked, user data leaked

"In the very best interest of our customers, who have been affected by this malicious act, we are firmly committed to fully assisting these law enforcement and investigative authorities, without reserve," said Ashley Madison's parent company, Avid Life Media.

The group supposedly behind the attack, dubbed the Impact Team, released Ashley Madison internal emails following its first post of identifying customer information on 30 million users. Since then, some high-profile users and people registering with .gov email addresses have been ousted as customers.

"This is worldwide," said Bryce Evans, the Toronto Police Staff Superintendent involved in the investigation. "We're looking at bringing in top security investigators from around the world to assist." Toronto police said the FBI would be leading the investigation.

"This is your wake-up call," he said.

Read the full report from Krebs on Security.

The Associated Press contributed to this report.