Could my iPhone 13 be compromised by accidentlly clicking on an ad on Facebook?

Norrobi445 wrote:

Thanks for replying so quickly. What if something downloaded?

Unlikely.

Unlikely anything harmful was downloaded, unlikely it can get past code signing and malware checks, and unlikely it can get executed.

What you are concerned about is effectively either an espionage tool, or a no-interaction jailbreak. Both of which are uncommon.

Both last night and today while Googling on Safari, Google alerted me that there was "unusual traffic" coming from me/my device.

Ask Google. I don’t have Google apps installed, and don’t use Fi, and tend not to use Google services.

Based on some web searches (using another search engine), their “unusual traffic” messages are seemingly less than useful, too.

Or Google just want more free labor to train their statistical models.

Potential contributors to Google confusion include VPNs and Private Relay, as well as other potential candidates.

Could it be that the malware is in my Safari app in some way?

Unlikely.

Proving a negative—that you aren’t compromised—is exceedingly difficult, though.

If you’re an annoyance to somebody exceedingly rich and powerful, or an investigative journalist, or political dissident, senior in some large or well-funded private or public organization, with access to sensitive or classified data, or with access to great wealth, or similar, the security calculations here might or will shift.

But again, security problems are unlikely here.

In all likelihood, no.

No, you can’t compromise a phone visiting a sketchy site. You can compromise your identity if you enter any information into the site, but it sounds like you didn’t do that.