It's all data grab and future monetizing. The drawback with single sign-on for internet-based accounts is that, once the provider is compromised, all your connected accounts are compromised. You're basically handing over critical login information to a private company who exist to make profit, entrusting them to keep it safe. And based on track record, we all know these technology companies aren't impervious to hacking, human error or 100% trustworthy.
People can opt to share as little personal information as possible to non-essential accounts online, and reserve sharing of sensitive information to institutions that matters, like financial, health care, and government.
You're better of safekeeping your passwords in an offline, password-protected document
Another way to think about it is Google Chrome. Each tab or site, plug-in, or background task spawns an isolated process, so if one site does something bad or crashes, other tasks aren't affected. The same principle can be applied to online logins. Keep them separate, so when one is compromised, the rest are safe.
It would be a nightmare if your Instagram is hacked, and consequently your banking and including all your online presence because you thought a little bit of convenience using an SSO service was a good thing.
Security and privacy starts with you. Learn to police yourself and disclose personal information only to institutions that matters. You don't have to share everything.
New York (The Verge) — Google’s login chief would rather you use Apple’s sign-in button than keep using passwords theverge.com/2019/6/12/1866….
Google’s login chief is surprisingly sunny about competing with Apple’s new single sign-on (SSO) button, as long as it means fewer passwords.
Apple shook up the world of logins last week, offering a new single sign-on (or SSO) tool aimed at collecting and sharing as little data as possible. It was a deliberate shot at Facebook and Google, which currently operate the two major SSO services. But while Google wasn’t happy about the veiled privacy jabs, the company’s login chief is surprisingly sunny about having a new button to compete with. While the login buttons are relatively simple, they’re much more resistant to common attacks like phishing, making them much stronger than the average password — provided you trust the network offering them. — Russell Brandom/@verge