Sectigo (formerly known as Comodo) is one of the leading providers for certificates. Such certificates are used to encrypt internet traffic going to websites and mailservers. Sectigo is now recalling almost 6000 certificates, all of which were issued to companies from The Netherlands. The recall action was announced Wednesday. Affected clients have less than one week to install a new certificate. On January 28 the old certificates will be revoked and websites on which the certificate has not been replaced will refuse to load.