Well, that someone nefarious who gets access can then only steal from that point on. Recall will allow him to find out you were having a wank last Tuesday at 7PM.

The FBI and NSA actually advocated for end to end encryption recently. So either they have finally come to their senses or they have acquired the ability to break everything easily.

You might want to look into Hivision cameras (or oem versions like Annke) and frigate NVR. All you need is a pc and some basic linux knowledge.