To protect your funds in Bitcoin and altcoins from fraud and hacking, it is best to follow some security measures. Update your security knowledge periodically, and be sure to apply the following tips:

1. Hardware wallets:

Use hardware wallets to store your cryptocurrencies offline, making them less vulnerable to hackers.

2. Software update:

Update your digital wallets and security software regularly to avoid exploiting vulnerabilities.

3. Use well-known wallets:

Choose well-known and reliable digital wallets, and avoid storing your funds in unknown or untrusted wallets.

4. Verify certificates:

Make sure that the websites you use to buy or sell cryptocurrencies are encrypted with security certificates (SSL) to ensure information is encrypted.

5. Use reliable sources:

Turn to reliable sources of information about security and trading in Bitcoin and other digital currencies.

6. Activate two-factor verification:

Enable two-factor authentication (2FA) on your digital accounts for increased protection.

7. Maintain your privacy:

Don't share private keys or sensitive information online, and avoid opening unknown links or attachments.

8. Learn safety:

Learn the basics of digital security and how to protect yourself from fraud and hacking attacks.

Remember that any investment in altcoins carries risks, so be careful and do not invest more than you can afford.