Yes, SaaS, in the context of CKEditor Cloud Services, can be secure.
CKEditor employs various security measures to protect user data, including encryption, authentication, and access controls. They also conduct regular security audits and monitoring, and are SOC 2 Type 2 compliant, demonstrating a commitment to data security.
For more detailed information, you can refer to the System Security and Privacy documentation and the SOC 2 Type 2 Compliance announcement.