A US financial security columnist responds to a reader question about whether dedicating a separate computer solely to online banking and investment accounts is a worthwhile security measure. The advice concludes that this can add a meaningful extra layer of protection, particularly for people with substantial savings or retirement assets, though it stresses that simply buying a second computer will not make accounts invulnerable — proper setup and disciplined use are what actually make the approach effective.

The article explains that everyday computers face constant exposure through email, browsing, social media and downloaded software, all of which create openings for malware and phishing. A dedicated financial computer reduces this risk by avoiding such activity entirely, ideally running minimal additional software. However, the piece cautions that isolation has limits: reused or weak passwords remain vulnerable regardless of device, and attackers can bypass the safeguard entirely by hijacking a victim's phone number through SIM swapping to intercept text-based verification codes.