You see the buttons everywhere. "Sign in with Google." "Sign in with Apple." One click and you skip the password routine, but that convenience has a cost most people never think about.
Google and Apple handle your data very differently when you use their sign-in buttons, and the social login privacy risks that come with each sign-in option are worth knowing before you click. Here is what each option actually shares, what it keeps, and what you can do instead.
Key takeaways
- Google passes your real email to every app you sign into, while Apple lets you hide it behind a relay address
- Both options create a single point of failure for every connected account
- Apps can request access to contacts, calendars, and files through Google sign-in
- Using unique email aliases for each account removes the core risks of social login
What happens when you click "Sign In with Google"
When you tap that button, Google verifies your identity to the app using a protocol called OAuth. The app never sees your Google password, but that does not mean nothing gets shared.
What Google shares and what Google keeps
Google sends your name, email address, and profile photo to the app. Some apps request more, like access to your contacts, calendar, or Google Drive files. You may see a permissions screen, but most people click through without reading it.
So is sign in with Google safe? Your password stays protected, and the app never sees it, but your real email becomes the identifier the app stores, and once that email is in their database, you cannot take it back. Say you sign into a recipe app with Google today, and six months later that app gets breached. Your real email ends up on data broker sites and in breach databases, and you had no control over it.
Google also retains its own record of every sign-in, including which apps you connect to and when you log in, and that login metadata may feed into the profile Google already builds from your search history, email, and browsing.
Aggregated logins build a cross-service profile of you
Each app you sign into creates a persistent connection to your Google account, and over time those connections pile up. Most people have dozens of linked apps and have forgotten about half of them.
- Old trial accounts still have access to your profile data
- Abandoned apps may still be pulling information from your Google account
- A breach at any one of those apps can expose your real email and name
The bigger picture is what Google can learn from all those logins taken together. Signing into a fitness app, a budgeting tool, and a dating service tells Google something about your life that no single app reveals on its own, and that aggregated signal may feed into ad targeting. To see how many apps are connected right now, review and revoke them at myaccount.google.com under "Third-party apps with account access."
If you are not sure how exposed your current accounts already are, run a free safety scan to find out.
What happens when you click "Sign In with Apple"
Sign in with Apple is a privacy-focused alternative built specifically to restrict how much data apps can see about you, and the sign in with Apple privacy model works differently from Google in a few important ways.
Apple lets you hide your real email and edit your name
On first sign-in, Apple gives you the option to edit your name before sharing it with the app. You can also enable "Hide My Email," which generates a unique relay address for each app so the app never sees your real email. Messages forwarded through the relay still reach your inbox. On the data side, Apple states the company does not use sign-in data for ad targeting, and because Apple's revenue comes from hardware and services rather than advertising, the incentive to collect login behavior is different from Google's.
What Apple retains and where limitations remain
Apple does keep a record of which apps you have connected to your Apple ID, and when you first signed up for each service, but according to Apple's support documentation, the company retains only the information needed to let you sign in and manage your account. Even so, Sign in with Apple has trade-offs:
- The seamless biometric experience (Face ID, Touch ID) only works on Apple devices, and non-Apple users need an Apple Account with two-factor authentication to sign in via a web page
- Some apps do not support Apple sign-in at all
- If you lose access to your Apple ID, you lose access to every app you signed into with it
- You are still dependent on one company as the gatekeeper for all connected accounts
Apple vs Google SSO privacy: the real differences
When comparing Apple vs Google SSO privacy side by side, the differences come down to a few specific areas.
Data sharing
Google shares your real email, name, and profile photo by default, and some apps can request deeper access to your Google data. Apple shares a name (which you can edit before submitting) and lets you hide your email behind a relay address.
Tracking
Google retains login metadata, including which apps you use, and may use those signals for ad targeting. Apple states it does not use sign-in data for advertising or track what you do inside connected apps.
Business model
Google earns revenue from advertising built on user data, while Apple earns revenue from hardware and services. That difference shapes how each company handles your sign-in data.
What happens if you delete or lose your SSO account
Both carry the same risk here. If you delete your Google or Apple account, or lose access through a hack or lockout, every downstream app connected to it typically loses access too. Most apps have no recovery path for SSO-only accounts, and there is no way to transfer those connections to a different identity provider.
The risks both options share
Despite their differences, Google and Apple sign-in share the same structural problems.
Single point of failure and no easy exit
One compromised account unlocks everything you signed into with it. A hacker who gets into your Google or Apple account can potentially access your bank, email, social media, and work tools all at once, and once you are locked into SSO for a service, switching away is not always possible because some apps do not let you add a password after the fact.
Your real identity still spreads
With Google, your real email address ends up in every app's database, and over time those databases get breached. Your email appears on dark web marketplaces, and scammers use it to build a profile of you through people-search sites. Apple's relay email reduces that exposure, but a name is still shared with every app even if you edit it before submitting.
When social login makes sense and when to skip it
Social login is not always the wrong choice. For low-stakes accounts like news apps, free tools, and short-term trials, the convenience may be worth it.
Where it gets risky is anything sensitive. Banking, healthcare portals, primary email, cloud storage, and work tools should all use a direct login with a unique email alias and two-factor authentication instead.
A better alternative: unique aliases for every account
The core problem with both sign in with Google privacy and Apple privacy is the same, both tie multiple accounts to a single identity, and when one account is compromised, the damage spreads across everything connected to it.
Apple's relay email is actually the right idea, because generating a unique throwaway address per app is what protects your real identity from breaches and cross-service tracking. The limitation is that Apple's version is built around the Apple ecosystem, requires an Apple Account, and still funnels every connection through your Apple ID as a single point of control.
An alias-based approach takes that same architecture and removes the ecosystem lock-in. You create a separate email alias for each account on any device and with any service, so a breach at one app cannot be connected to your other accounts. You can disable any alias instantly, and signing up is just as fast as clicking an SSO button without handing control to Google or Apple.
You also avoid the single-point-of-failure problem entirely. No master account means no master key for a hacker to steal.
How Cloaked helps you drop social login for good
Cloaked is useful here in a straightforward way. You can generate unique email aliases and masked phone numbers for every account with a single click. Cloaked also removes your personal data from 1000+ public websites, adds dark web and SSN monitoring, and includes $1M in identity theft insurance.
Take a safety scan and see how exposed your accounts already are, or contact us to learn more.
FAQs
Is Sign in with Google safe to use?
Your password stays protected, and the app never sees it. However, Google shares your real email address, name, and profile photo with the app. That email can end up in breach databases if the app gets hacked, and two-factor authentication on your Google account reduces the risk but does not hide your real email.
Is Sign in with Apple more private than Google?
Apple offers a "Hide My Email" feature that generates a random relay address for each app. Google does not offer anything similar and passes your real email every time. Apple also states it does not use sign-in data for ad targeting. For privacy, Apple's option is stronger.
What are the biggest social login privacy risks?
The main risks are data sharing, single point of failure, and tracking. Your identity provider learns which apps you use, and the app gets your profile data. If your main account is hacked, every linked app is exposed.
Can you switch from social login to a regular account?
Some apps let you add a password and email after signing up with Google or Apple, but others do not support the switch at all. Check each app's account settings to see if the option exists. If not, you may need to create a new account with a separate email.
Should you use social login for banking or financial apps?
No. Banking, investment, and financial apps should always use a direct login with a unique email and strong two-factor authentication. Social login creates unnecessary risk for accounts that hold sensitive financial data.
What is the safest alternative to Sign in with Google or Apple?
Using a unique email alias for each account is the safest approach. Each alias is separate, so a breach at one service cannot spread to others. Pair that with a unique password and two-factor authentication for the best protection.
