Protecting our users’ information and privacy is extremely important to us. As a cloud-based security service, we are fully committed to complying with the PCI Data Security Standards (PCI DSS) requirements. That is why Sucuri disabled support for TLS version 1.0 and 1.1 to our WAF/CDN edge nodes on June 28, 2018.
What Is TLS?
Transport Layer Security (TLS) is a cryptographic protocol used to enhance the security of a communication channel by encrypting the traffic between the parties involved.
Source: Scuri check