The best way to protect your AdSense account from invalid traffic is to be proactive and take steps to prevent it from happening in the first place. Here are some tips: 1. Use only high-quality traffic sources. 2. Monitor your traffic closely and look for any red flags that could indicate invalid traffic. 3. Immediately block any suspicious traffic sources. 4. Keep your account security tight, including using a strong password and two-factor authentication. 5. Report any invalid traffic to Google so they can investigate and take action if necessary. 6. Use server-side IVT prevention tools. 7. Solve the layout issues that can result in accidental clicks. By following these tips, you can help to protect your AdSense account from invalid traffic and keep your earnings safe.