Security News

Keys Used to Encrypt Zoom Meetings Sent to China: Researchers
2020-04-03 15:41

A recent analysis of the Zoom video conferencing application revealed that the keys used to encrypt and decrypt meetings may be sent to servers in China, even if all participants are located in other countries. "A scan shows a total of five servers in China and 68 in the United States that apparently run the same Zoom server software as the Beijing server. We suspect that keys may be distributed through these servers. A company primarily catering to North American clients that sometimes distributes encryption keys through servers in China is potentially concerning, given that Zoom may be legally obligated to disclose these keys to authorities in China," Citizen Lab explained in a report published on Friday.

S2 Ep30: Let’s Encrypt, ULTRASOUND attacks, backups for ransom – Naked Security Podcast
2020-03-11 17:51

This week we talk about why Let's Encrypt might have to celebrate its billionth certificate twice, wonder if James Bond could hack Siri with ultrasound, and make backups surprisingly interesting. LISTEN NOW. Click-and-drag on the soundwaves below to skip to any point in the podcast.

Let's Encrypt: We Won't Revoke All Certificates Right Now
2020-03-06 14:18

Let's Encrypt planned to revoke more than 3 million TLS certificates on Wednesday after it discovered a bug that allowed an important security check performed during TLS issuance to be bypassed. On March 4, we will revoke 2.6% of currently active Let's Encrypt certificates.

Let's Encrypt Will Not Replace 1 Million Bug-Affected Certificates
2020-03-06 14:09

Free and open certificate authority Let's Encrypt has decided that it will not revoke one million of the certificates affected by the recent CAA recheck bug. A total of 3,048,289 certificates were supposed to be revoked, but Let's Encrypt ultimately decided to leave 1 million of them unreplaced at this time.

Let's Encrypt: OK, maybe nuking three million HTTPS certs at once was a tad ambitious. Let's take time out
2020-03-05 20:58

Let's Encrypt has halted its plans to cancel all three million flawed web security certificates - after fearing the super-revocation may effectively break a chunk of the internet for netizens. Earlier this week, the non-profit certificate authority, which issues HTTPS certs for free, announced a plan to disable some three million certificates tainted by a software bug.

Let’s Encrypt Pushes Back Deadline to Revoke Some TLS Certificates
2020-03-05 11:29

Let's Encrypt said it will give users of its Transport Layer Security certificates more time to replace 1 million certificates that are still active and potentially affected by a Certificate Authority Authorization bug before it revokes them. The popular free certificate authority had given users until Wednesday, March 4, 9:00 p.m. EST to replace 3 million certificates because the bug in its Boulder software-discovered and patched this past Sunday-impacted the way its software checked domain ownership before issuing certificates.

Let's Encrypt Revoking 3 Million TLS Certificates Issued Incorrectly Due to a Bug
2020-03-05 05:36

The most popular free certificate signing authority Let's Encrypt is going to revoke more than 3 million TLS certificates within the next 24 hours that may have been issued wrongfully due to a bug in its Certificate Authority software. The bug, which Let's Encrypt confirmed on February 29 and was fixed two hours after discovery, impacted the way it checked the domain name ownership before issuing new TLS certificates.

Why 3 million Let’s Encrypt certificates are being killed off today
2020-03-04 15:33

In the past, there were two main reasons: TLS certificates were complicated and time-consuming to acquire and use; and they cost money that sites such as charities, hobbyists and small businesses resented having to pay, especially given that certificates need renewing regularly. Let's Encrypt certificates are valid for 90 days, and autorenew for most users when there are 30 days or fewer left on their current certificates.

Bug Forces Let's Encrypt to Revoke 3 Million Certificates
2020-03-04 13:15

Free and open certificate authority Let's Encrypt is revoking over 3 million currently-valid certificates after discovering a bug in its Certification Authority Authorization code. Thus, a subscriber could issue certificates for validated domain names 30 days after validation, without a second check being performed 8 hours prior to issuance, and the certificate would be issued even if someone installed CAA records for that domain name to prohibit certificate issuance by Let's Encrypt.

Let's Encrypt Vulnerability
2020-03-04 12:46

"In a notification email to its clients, the organisation said:"We recently discovered a bug in the Let's Encrypt certificate authority code. Typically, a Web server that services many separate domain names and uses Let's Encrypt to secure them receives a single LE certificate that covers all domain names used by the server rather than a separate cert for each individual domain.