In Pictures: Mobile security - How gadgets evolved

Still got an old Blackberry or Compaq laying around? CSO Publisher (and packrat) Bob Bragdon does! Rummaging around Bragdon's attic (with some memory help from mobile office expert Catherine Roseberry) provides a look at how mobile device security has evolved.

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1989: Sharp Dial Master EL-6250H Roseberry says the Dial Master was a telephone book, memo pad, calculator and auto phone dialer with 8KB of memory.

Security feature: Secret key to password-protect items.

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In Pictures: Mobile security - How gadgets evolved

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