Yahoo employee here, we have a 18 month retention period. After which data is, at the very least, anonymized. https://policies.yahoo.com/us/en/yahoo/privacy/t

Yahoo employee here, we have a 18 month retention period. After which data is, at the very least, anonymized. https://policies.yahoo.com/us/en/yahoo/privacy/topics/datastorage/index.htm https://policies.yahoo.com/us/en/yahoo/privacy/topics/datast...