As Ruth Kricheli, a vice president of product management at Google, said in a May 2023 update, 'If an account hasn't been used for an extended period of time, it is more likely to be compromised.” This might sound like something of a stretch, but it does make sense, as older accounts are less likely to have things such as two-factor authentication running. The official reason is that of improving security. Contributor Why Is Google Deleting Gmail And Photos Content?