Lawful Filter

A Lawful Filter is an Internet content filtering system that can block access to websites, emails and downloads. Content that is considered to be inappropriate from the public opinion of a society may be blocked. Additional web resources that could be harmful to citizen (phishing pages, browser exploits, scareware) can be filtered.

The filter decision criteria for such a system could be based on any or all of the following factors:

  • A filter list that is maintained by the Law Enforcement Agency, and securely distributed among the service providers.
  • Content classification into groups that is done by a trusted 3rd party.
  • Autonomous scanning for malicous content or blocking on signature or heuristic decision.

DN-Systems International offers consulting to help Law Enforcement Agencies (LEA) and service providers, how to comply with mandates in different regulatory environments worldwide.

Solutions for the LEA

  • Automated filter test suite
  • Creation and secure distribution of filter list(s)
  • Bridging the gap between network forensics and lawful filter
  • Security testing of existing filter solutions
  • Proof of compliance - for LEAs or vendors
  • Special services

Solutions for service providers

  • Consultancy for IP networks and data center design to comply with a lawful filter mandate
  • Mediation and assistence to implement requirements from LEAs
  • Consultancy on international and local regulatory standards
  • Proof of compliance - for LEAs or vendors
  • Special services
For more information and references please contact: info@dn-systems.com