

The consequences of that are as broad and varied as our individual systems are, and many times cascading failures or 'downstream' failures will lead to problems with entirely different systems than the one with the original certificate trust problem," Callan said.
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"If software depends on an expired root to validate the trust chain for a certificate, then the certificate's trust will fail, and in most cases, the software will cease to function correctly. Additionally, we are working on a longer-term solution to address this edge case issue directly within our product," the company said in a statement.ĭigital certificates expert Tim Callan said all modern digital systems depend on certificates for their continued operation, including those that secure our cyber and physical environments. "We are communicating directly with customers and have provided a temporary workaround. Merchant authentication for Support interactions have also been restored, the company said.įortinet told ZDNet they were aware of and have investigated the issue relating to the expired root CA certificate provided by Lets Encrypt. Shopify posted a note on its incident page that by about 3:30 pm, merchant and company partners who were struggling to login had their services restored.

Some sites posted notices on their website about potential issues, and many have resolved the issues. it's like looking for something that could cause a fire: it's really obvious when you can see the smoke!" In many ways, I've been talking about this for over a year since it last happened, but it's a difficult problem to identify. "For the affected companies, it's not like everything is down, but they're certainly having service issues and have incidents open with staff working to resolve.
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"There are a couple of ways to solve this depending on what the exact problem is, but it boils down to: The service/website needs to update the certificate chain they are serving to clients or, the client talking to the website/service needs an update," Helme explained. Helme told ZDNet that he confirmed issues with Palo Alto, Bluecoat, Cisco Umbrella, Catchpoint, Guardian Firewall,, PFsense, Google Cloud Monitoring, Azure Application Gateway, OVH, Auth0, Shopify, Xero, QuickBooks, Fortinet, Heroku, Rocket League, InstaPage, Ledger, Netlify and Cloudflare Pages, but noted that there may be more. While robust passwords help you secure your valuable online accounts, hardware-based two-factor authentication takes that security to the next level.ĭespite advance warning that the expiration date would be on September 30, when the deadline hit, dozens of users reported issues with a variety of services and websites. Google Drive alternative: Decentralized and encrypted
