If you’re one of the 1.4 billion people with a Gmail account you should probably consider getting off of it if you haven’t already. Or at least get an alternate account on another platform for anything other than spam. Via the Wall Street Journal (and archive.is link here):
Google said a year ago it would stop its computers from scanning the inboxes of Gmail users for information to personalize advertisements, saying it wanted users to “remain confident that Google will keep privacy and security paramount.”
But the internet giant continues to let hundreds of outside software developers scan the inboxes of millions of Gmail users who signed up for email-based services offering shopping price comparisons, automated travel-itinerary planners or other tools. Google does little to police those developers, who train their computers—and, in some cases, employees—to read their users’ emails, a Wall Street Journal examination has found.
You should always be wary of any company re-assuring you that it’s totally self-policing to make sure we get the best user experience blah blah blah. The fact of the matter is they’re only saying this crap because they got caught before, not because they care. And you’d be naive to think they weren’t going to keep this practice up anyways. Given how lax any sort of vetting is on who from the 3rd party software is reviewing what emails and for what purposes leaves way too much latitude for misuse. They shouldn’t be reviewing the damn emails in the first place.
The best solution is to get off Gmail entirely. ProtonMail is a much better alternative. There are a lot of better alternatives out there. If you do stick with it, review your Security Check-up and revoke access from any apps you don’t want to risk your data going to.