The Ask Leo! Guide to Staying Safe on the Internet (PDF) – v5 – Expanded Edition


NEW! Expanded 5th Edition!

This is a PDF file you download to your computer or other digital device.

Also available:
» Kindle (via Amazon)
» Paperback (via Amazon) – v4 (note: paper edition upgrades are not free – digital downloads are, and are included).

(Downloadable .pdf, .mobi, .epub versions included with all editions.)

Posted: July 21, 2017
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Leo Who?

I'm Leo Notenboom and I've been playing with computers since I took a required programming class in 1976. I spent over 18 years as a software engineer at Microsoft, and "retired" in 2001. I started Ask Leo! in 2003 as a place to help you find answers and become more confident using all this amazing technology at our fingertips. More about Leo.