All over the globe scammers never sleep trying to steal money. Things like fake phone calls and "Nigerian prince" emails are targeted towards vulnerable people. In the DEFI world scammers don't get any better. It doesn't matter what project you're into, scammers will always be lurking.
2FA and Authentication:
To participate in these communities you'll generally be required to download apps or make accounts. 2FA should be considered when making these accounts, even if you believe you have a secure password. SMS based 2FA is generally weaker than a password due to sim swap attacks. The solution is to use Google Authenticator, Microsoft Authenticator or Authy.
Make sure to not reuse passwords. Having more unique passwords can make it harder for multiple accounts to be compromised even if one of the passwords gets leaked. Tools like Password managers like Bitwarden and Google are very helpful to keep track of all your passwords. You can also use methods like writing it down on paper or password book and storing them in a safe.
Not your keys not your coins:
Move your cryptocurrency off of exchanges. Exchanges aren't always transparent with what they do with your funds. The FTX insolvency, Celsius bankruptcy and the ever so infamous Mt. Gox are examples of this statement. Some solutions would be a Ledger or Trezor or any hardware wallet for that matter. To add to this point, you should NEVER share you 12 or 24 word seed phrase.
Browser extensions can help upgrade your web3 security. A couple solutions like https://https://revoke.cash, https://pocketuniverse.app, https://walletguard.app, and https://web3antivirus.io are great extensions to protect you from suspicious or outright scam websites and also help tell you what may happen during a transaction.
Please also check out our 5 tools to identify a DEFI scam article!