Dutch certificate authority KPN has stopped issuing digital certificates after finding a DDoS tool on one of its servers.

"The company said in a statement that it found evidence during a security audit that it found a server with a DDoS tool on it, and that that the tool may have been there for as long as four years," writes Threatpost's Dennis Fisher.

"KPN, a Dutch telecom company that also operates several other businesses under various brands, said in its statement (Dutch) that it had stopped issuing certificates as a precautionary measure and that it was operating under the premise that certificates already issued were still valid," Fisher writes.

Go to "Another Dutch CA, KPN, Stops Issuing Certificates After Finding DDoS Tool On Server" to read the details.

For regular security news updates, follow eSecurityPlanet on Twitter: @eSecurityP.