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A dedicated banking computer can cut device risk, but the attack surface runs deeper

9/6/2026

Cybercrime losses nearing $21 billion have pushed the question of device hygiene into the mainstream of personal finance.

Kurt "CyberGuy" Knutsson, writing at CyberGuy.com, addressed the strategy after Nancy from Baton Rouge, Louisiana, asked whether keeping a separate computer exclusively for banking and investment accounts provides meaningful protection.

His assessment: yes, with conditions that define whether the isolation actually holds. The logic behind the approach is straightforward.

A computer used only for financial accounts skips email, social media, online shopping, and browser extensions. Each of those activities creates an entry point for malware or phishing.