Bitcoin does not have a security flaw which makes it susceptible to risks and attacks. What can happen is you as a user can have breaches in your device which exposes your personal wallet to risks, this is not a breach on the Bitcoin Network.
Protect your device from external threats by;
• Not clicking on untrusted links,
• No downloading random, unverified apps,
• Only use non custodian, open source and reputable wallets,
• Do not give third party access to your wallets,
• Use an airpagged device or hardware wallet.
Great list! I will add: keep the seed words offline, safely, without any chance for others to get access to them; the seed has to never touch a device that will ever go online. Keeping the seed as copies in multiple geographically distinct places is also a good idea.