Back in May, Google updated its Gmail app on Android to warn about phishing attempts. It is now rather belatedly bringing that same protection to the iOS app.
The protection kicks in if you click on a sketchy link in an email, with two different levels of warning …
If Google knows the site to be a phishing operation, it will tell you.
The site you are trying to visit has been identified as forgery, intended to trick you into disclosing financial, personal, or other sensitive information.