Imgur, the popular image sharing service, confirms email addresses and passwords were stolen in a security breach occurred in 2014. The company said that the stolen passwords were protected with the SHA-256 hashing algorithm that can be easily cracked using brute force attacks. Imgur is investigating the incident, but it is still unclear how it is possible that the incident was revealed only three years later. 60 percent of email addresses were already in Have I Been Pwneds database of more than 4.8 billion records.”]
Source: https://securityaffairs.co/wordpress/65991/data-breach/imgur-2014-data-breach.html