Is it safe to use my old MacBook Pro (2013) running macOS Big Sur 11.7.10 for things like online banking?

bubbles59 wrote:

What about browsing the internet in general?

In general I would not be concerned.

if you run into an issue where it states you need a new version of Safari.app , Firefox browser may cater to older macOS

Big Sur 11.7.10 is the end of the line for a late 2013 Retina model mac.

you can review—

Protecting against malware in macOS

Protecting against malware in macOS - Apple Support

Recognize and avoid phishing messages...

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Effective defenses against malware and other threats… - Apple Community

Effective defenses against malware and ot… - Apple Community

bubbles59 wrote:

What about browsing the internet in general?

Big Sur can't run current versions of Safari. It appears that the most recent version of Safari that is compatible with Big Sur is Safari 16.6.1, which Apple released on September 21, 2023. (The Safari release notes only show releases up to 16.6; the reference to 16.6.1 is from the second page of the Apple security. releases list.)

Safari Release Notes | Apple Developer Documentation

Apple security releases - Apple Support

Big Sur is enough to run current versions of many third-party Web browsers, including

• Firefox
• Brave
• Microsoft Edge
• Opera

Regardless of which Web browser you use, a big part of Internet security is simply staying away from dark corners of the Web, and learning to recognize "phishing" messages. Yes, computers can have security weaknesses – but these days, a lot of criminals find it easier to target the "weak point" behind the screen – you – than to attack your computer directly. Ironically, their "phishing" attacks often play upon fears of viruses and security problems.

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Protect yourself from tech support scams – Microsoft Support

U. S. Federal Trade Commission – How To Spot, Avoid, and Report Tech Support Scams

bubbles59 wrote:

Is it safe for me to use my old (2013) MacBook Pro running Bug Sur 11.7.10 for things like online banking?

for your Bank in question...I would ask them.