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TLS certificates act as machine identities, safeguarding the flow of sensitive data to trusted machines. With the acceleration of digital transformation, the number of machine identities that organizations need to trust is skyrocketing. At the same time, cybercriminals are targeting machine identities to use in attacks. In particular, TLS keys and certificates are uniquely valuable to cybercriminals because of capabilities, such as the encrypted traffic they enable.
Unfortunately, compromised machine identities can have a major financial impact. A recent AIR Worldwide study estimated that between $51 billion to $72 billion in losses to the global economy could be eliminated through the proper management and protection of machine identities.
"57,000 TLS certificates that they did not know they had"
Given the impact and growing exposure to these threats, it’s worth asking whether security teams are properly protecting their machine identities? Venafi recently conducted a study on the security and operational risks connected with machine identities used to establish encrypted SSL/TLS connections. The study evaluated the opinions of 550 CIOs from the United States, United Kingdom, France, Germany and Australia.
SSL/TLS Certificates and Their Prevalence on the Dark Web
The study revealed that 75% of global CIOs expressed concern about the security risks connected with the proliferation of TLS machine identities. However, 93% of respondents estimated that they had a minimum of 10,000 active TLS certificates by their organizations; and 40% say they have more than 50,000 TLS certificates in use.
“According to a Venafi survey from 2018, once IT professionals deployed a comprehensive machine identity management solution, they typically found 57,000 TLS machine identities that they did not know they had in their businesses and cloud,” said Kevin Bocek, vice president of security strategy and threat intelligence at Venafi. “This study indicates that many CIOs are likely significantly underestimating the number of TLS machine identities currently in use. As a result, they are unaware of the size of the attack surface and the operational risks that these unknown machine identities bring to their organization.”
Venafi’s study also revealed that more than half of CIOs (56%) said they worry about outages and business interruptions due to expired certificates. In addition, 97% of CIOs estimated that the number of TLS machine identities used by their organization would increase at least 10–20% over the next year.
“Whether it’s debilitating outages from expired certificates, or attackers hiding in encrypted traffic for extended periods of time, there are risks abound,” continued Kevin. “The only way to eliminate these risks is to discover, continuously monitor and automate the lifecycle of all TLS certificates across the entire enterprise network—and this includes short lived certificates that are used in the cloud, virtual and DevOps environments.”
Do you think your organization understands the security risks of TLS certificates? And, can you properly protect them?
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