The ongoing US government shutdown is leaving dozens of official websites insecure or inaccessible.
Affected websites include the US Department of Justice, the Court of Appeals and Nasa. The shutdown, over a funding dispute for President Trump’s Mexican wall, means 400,000 federal employees are currently not being paid.
One of the side effects of this is that security certificates for websites are not being renewed.
Digital certificates ensure that communications between devices and websites are sent in an encrypted, secure manner and are an essential part of keeping IT infrastructure up and running. But, when issued, they are given an expiration date of anything between a few months and several years.
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