Safety and security are two reliability properties of a system. A “safe” system provides protection against errors of trusted users A “secure” system protects against errors introduced by untrusted users.
There is considerable overlap between mechanisms to support each property.
Reference List
- Alexander, S., Arbaugh, W. A., Keromytis, A. D., & Smith, J. M. (1998). Safety and security of programmable network infrastructures. IEEE Communications Magazine, 36(10), 84-92.