A textbook rental firm has disclosed in a Securities and Exchange Commission filing that it is notifying 40 million active and inactive registered users as well as regulatory authorities of a data breach.
Santa Clara, California-based Chegg Inc. said in Wednesday’s filing that it learned on Sept. 19 that on or around April 29 an unauthorized party gained access to a company database that hosts user data for chegg.com and certain of its brands.
It said the information that may have been obtained could include a user’s name, email address, shipping address, Chegg user name and a hashed Chegg password.
It said the incident is under investigation, but it understands no social security numbers or financial information such as users’ credit cards or bank account information was obtained.
The company said the incident will not have a material impact on its yearend financial results.
Facebook Inc. said Friday it has discovered a security issue affecting about 50 million user accounts.
Japanese cryptocurrency firm Tech Bureau Corp. said that hackers stole about $60 million in digital currencies from its exchange on Sept. 14, Reuters reported. Tech Bureau said that hackers stole virtual currencies including bitcoin, monacoin and bitcoin cash of which JPY 4.5 billion belonged to customers.