Sign in with Google or Facebook: what gets shared?
Sign in with Google or Facebook in simple English: what data is involved, the main privacy risk, what to check and the safest next step.
The simple answer
Sign in with Google or Facebook deserves a privacy check because social login can share identity fields and connect activity across services. The problem is not always fraud. Normal product settings, broad permissions, long retention and unclear partner sharing can expose more of your life than the service needs.
Before you continue, check the permissions screen and whether email, contacts or profile data are requested. A trustworthy service should explain what it collects, why it needs it, who receives it and how you can remove it. If the explanation is missing, share less or choose another route.
What to check
If this is unclear, treat it as a signal to ask the company for a plain-English explanation.
If this is unclear, treat it as a signal to ask the company for a plain-English explanation.
If this is unclear, treat it as a signal to ask the company for a plain-English explanation.
If this is unclear, treat it as a signal to ask the company for a plain-English explanation.
Sign in with Google or Facebook leaves a data trail.
State of Privacy looks at the full trail around a service, not only the screen you see. Social login can share identity fields and connect activity across services. That is why the safest choice is the one that collects less and explains more.
What to do next
Keep it practical: take one action, save proof, and avoid giving more data than the task needs.
Keep it practical: take one action, save proof, and avoid giving more data than the task needs.
Keep it practical: take one action, save proof, and avoid giving more data than the task needs.
People also ask
Is sign in with google or facebook always unsafe?
No. The risk depends on what data is collected, the permissions used, the partners involved and whether you can delete the data.
What should I check first?
Start with the permissions screen and whether email, contacts or profile data are requested. Then review sharing, retention and deletion.
What is the safest next step?
Remove unused connected apps from your social account settings.
How many trackers run on your pages? Does your privacy policy name them? Can you answer a data-rights email? If you don't know, we can help you find out.
Talk to Meridian Bridge Strategy →Your personal data belongs to you. You can ask a company what it holds and how to raise a privacy request. The response depends on the applicable duties, identity checks and any retention requirements.
Get the template email →The public report shows what we found in the company records. Check the observation dates and method.