Answer:
Liam could
1) Change the password
Be sure to change the password to a "strong" one (containing lots of characters, numbers, symbols) so that way the password would be difficult to guess.
2) Avoid logging onto social media on public computers or WiFi connections.
Using public WiFi leaves you vulnerable to someone accessing your information through Internet traffic. If you do use public computers, just make sure to log out.
3) Avoid giving out account information to friends and avoid opening suspicious links and emails.
Opening suspicious links or emails could allow malware to infect your computer the moment you open them. Friends can unknowingly share these links that are designed to steal information.
I hope this helped <3 please lmk if there's anything more to add.