This breach was labeled by the NY Times as the "biggest known breach of a company's computer network" ever. After the company was purchased by Verizon, it came to light that Yahoo had been breached in 2013 and that 3 billion users' data had been compromised. This is not to be confused with the 2014 breach that was acknowledged in 2016. The company confirmed this breach in 2017, after new intelligence was obtained and indicated that all Yahoo user accounts were affected by the 2013 breach.