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Chapter 6. Explore Security in Depth > Use Identity-Based Security (a.k.a. IRM)

6.7. Use Identity-Based Security (a.k.a. IRM)

Earlier sections discuss protecting workbooks using passwords. The problems with passwords are:

  • They are susceptible to guessing attacks.

  • There is no secure way to share them among a group.

  • They tend to proliferate and become hard to remember. You can use the same password for all items, but that reduces security.


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