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Cybersecurity statistics / Network Protocols

Related statistics

SSH is the second most common protocol observed, with rising usage in nearly every sector except retail.
Forescout, 27/05/2026
Deprecated TLS clients are present in 96% of enterprise environments.
Vectra AI, 25/07/2026
63% of enterprise environments exhibit exposure across multiple risk themes, including weak cryptography, credential exposure, legacy protocols and exposed remote access.
Vectra AI, 25/07/2026
Deprecated TLS servers are present in 82% of enterprise environments.
Vectra AI, 25/07/2026
Telnet exposure in manufacturing is 12%, up from 5%.
Forescout, 27/05/2026
Telnet exposure in financial services is 12%, up from 3%.
Forescout, 27/05/2026

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