How did someone hack my MetaMask?

Could you please explain the process of how a hacker might have gained access to my MetaMask wallet? I'm concerned about the security measures in place and want to understand the potential vulnerabilities that allowed this breach to occur. Were there any specific actions I may have taken that could have compromised my account, or were there broader weaknesses in the system that need to be addressed? I'm eager to learn how to prevent similar incidents in the future.