DigiCert Blog

All posts under: Announcements

  1. Researchers Urge Administrators to Replace SHA-1 Certificates with SHA-2

    Online Security Warning

    This morning an international team of cryptanalysts urged administrators to replace their SHA-1 certificates as the risks associated SHA-1 are greater than previously expected. The published findings are theoretical and have not yet been proven in a practical setting. While there doesn’t appear to be an immediate present danger, we strongly encourage administrators to migrate…


  2. How to Remove an Expired Intermediate from the SSL Certificate Chain

    On September 30, 2015, at 12:15 pm, a legacy and long unused DigiCert cross-signed certificate expired, causing some users to experience untrusted certificate errors. The problem is generally related to a locally installed legacy intermediate certificate that is no longer used and no longer required. The problem may affect any client platform with a locally cached…


  3. Major Browsers Announce RC4 Deprecation in Early 2016

    If you haven’t heard already, the Internet Engineering Task Force has determined that stream cipher RC4 should never be used in TLS negotiations. And now Google, Mozilla, and Microsoft have all made announcements to deprecate support for the cipher in future browser releases, which are all slated for early 2016. The browser-related announcements follow years…


  4. SysAdmin Day 2015 Giveaway

    The 16th annual System Administrator Appreciation Day is almost here. On Friday, July 31st, DigiCert will be hosting a giveaway to celebrate the important role system admins play in all organizations. The Many Roles of SysAdmin Sysadmins are valuable to every organization because, in short, these people help everyone else at the company work and…


  5. OpenSSL Patches a “High” Severity Security Vulnerability

    Earlier this morning, OpenSSL released a security patch to fix a new vulnerability discovered in OpenSSL versions 1.0.2 and 1.0.1. This patch fixes one high severity vulnerability, which primarily affects clients. This bug does not affect private keys for DigiCert SSL Certificates, and no action related to certificate management is required. During certificate verification, OpenSSL (starting…