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Communications of the ACM

Practice Archive


Archives

The Practice archive provides access to all Practice articles published in past issues of Communications of the ACM.

December 2020


From Communications of the ACM

The Life of a Data Byte

The Life of a Data Byte

Be kind and rewind.


From Communications of the ACM

Security Analysis of SMS as a Second Factor of Authentication

Security Analysis of SMS as a Second Factor of Authentication

The challenges of multifactor authentication based on SMS, including cellular security deficiencies, SS7 exploits, and SIM swapping.