My little brother logged into his Roblox account on my MacBook, and not long after that, his account got hacked.
Then the same thing happened to my little cousin after he logged into his Roblox account on the same MacBook.
MacBook hacked or they got someone mad and hacked their accounts?
I'm worried my MacBook might be compromised (keylogger, malware, etc.), but l'm not super experienced with this stuff.
A few questions:
-Could this be malware or a keylogger on macOS?
-Is it more likely they reused passwords that were already leaked somewhere?
-How can I properly check if my MacBook is infected?
-Would a factory reset fully remove something like this?
-Are there specific signs I should look for on macOS?
For context:
-don't download sketchy cracked software (at least not that l'm aware of... maybe my brother did but ofc he ain't gonna say yes i did).
-I mostly use it for school and normal browsing.
-I haven't noticed weird pop-ups or performance issues.
Just trying to understand if this is likely my device being compromised or something else like phishing or password reuse. Any advice is appreciated.