This post is about the situation with Domain Keys Identified Mail (DKIM), a harmless little spam protocol that has somehow become a monster. My request is simple and can be summarized as follows: Dear Google: would you mind rotating and publishing your DKIM secret keys on a periodic basis? This would make the entire Internet quite a bit more secure, by removing a strong incentive for criminals to steal and leak emails. The fix would cost you basically nothing, and would remove a powerful tool from hands of thieves.

source: green