Nextcloud supports many different DLP measurements:

• AntiVirus integration
• Suspicious login detection based on machine learning
• File Access Control which allows you to:
  • block certain IP ranges from accessing files
  • block access based on time
  • block access based on user-agent
  • block or limit access to files with a certain tag (tags can be applied manually or automated)
• Password policies / Password enforcement
• MFA (optional or enforced)
• Audit log allows to monitor file access and logins and detect and log unexpected behaviour.
• Watermarking