Minnesota U.S. Senator and Congress' resident data protector Al Franken has turned his ire on Yahoo! after the internet giant revealed 500 million accounts had been compromised by hackers.
Franken has written a letter to Yahoo! CEO Marissa Meyer calling on the company to reveal how the massive data hack went unnoticed for so long, after he learned the data was first compromised in 2014.
Yahoo! confirmed last week the hack had taken place, advising users to change their passwords after what it said may have been a state-sponsored hack.
"We are even more disturbed that user information was first compromised in 2014, yet the company only announced the breach last week," Franken and a group of senators wrote in the letter to Meyer. "That means millions of Americans’ data may have been compromised for two years. This is unacceptable."
You can read the full letter here, with senators asking a number of other questions of the CEO.
As well as asking what steps it is taking to help the 500 million users whose information was compromised, the senators want to know what will be done to prevent such a breach in the future.
Franken is an assiduous defender of consumer privacy when it comes to tech companies, having previously taken issue with virtual reality equipment makers Oculus Rift, as well as Apple's iPhone and Pokemon Go over how user information is being handled by these companies.
Yahoo! said in the latest breach, hackers stole information including names, email addresses, telephone numbers, dates of birth, passwords, and in some cases encrypted or unencrypted security questions and answers.