Officially, or profile picture of a locked account. If you are not friends with the user, you will only see the cropped version visible on their profile page. Common "Workarounds" (And Their Risks)

: In some cases, if a profile was public before being locked, Google might have cached old public versions of the images.

: A blue shield icon appears on the profile to indicate it is protected. Can You View a Locked Cover Photo?

: Websites like iStaunch or browser extensions often claim to "unlock" private photos. Caution is advised , as many of these tools are scams designed to steal login credentials or install malware.

: Historically, users could sometimes find image URLs in the page source code. However, Facebook has patched most of these loopholes to protect user privacy.

If you want to protect your own cover photo and profile details, follow these steps: Lock your Facebook profile | Facebook Help Center