The role of antivirus in security

[Georgi Guninski]

https://www.britishairways.com/en-gb/information/legal/website-security#

| (1) Ensure you have anti-virus protection installed, and that it is up to date.
| (2) Keep your operating system and software up to date as these protect against the latest security threats.
| (3) Protect your computer with a password and keep the password secret.

Does (1) makes much sense?
Does the order (1), (2) make any sense?