https://www.kpn.com/algemeen/missie-en-privacy-statement/security-vulnerability
Found a security vulnerability in one of our systems? Please let us know.
report security vulnerabilitykpn
https://bluefin.io/reporting-security-vulnerability
Find out how security researchers can privately report a security vulnerability to Bluefin & what are the methods & restraints for testing such vulnerabilities.
security vulnerabilityreportbluefin
https://www.verizon.com/solutions-and-services/report-security-vulnerability/
See a security vulnerability? Say something. Tell Verizon more about your issues with phones, internet, business services or anything else so we can help!
report security vulnerabilityverizon wireless