The first step is to implement a robust backup strategy using the 3-2-1 rule, which involves keeping three copies of your data on two different media types with one copy stored off-site, and ensuring these backups are automated and tested regularly. The second point is to utilize comprehensive security software, such as updated antivirus and a firewall, to protect against malware, ransomware, and unauthorized access. Third, the video advises enforcing strong access controls by using unique, complex passwords for every account, enabling multi-factor authentication (MFA), and restricting permissions. The fourth strategy is to encrypt your sensitive data both at rest on devices and in transit over networks using tools like HTTPS and VPNs, which makes the data unreadable if stolen. Finally, the presentation encourages practicing safe computing habits, which include being aware of phishing attempts, securely disposing of old hard drives, and locking your computer and phone when you are away to prevent unauthorized access.