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Over 14K 'Let's Encrypt' SSL Certificates Issued To PayPal Phishing Sites (bleepingcomputer.com)

BleepingComputer reports: During the past year, Let's Encrypt has issued a total of 15,270 SSL certificates that contained the word 'PayPal' in the domain name or the certificate identity. Of these, approximately 14,766 (96.7%) were issued for domains that hosted phishing sites, according to an analysis carried out on a small sample of 1,000 domains, by Vincent Lynch, encryption expert for The SSL Store... Lynch, who points out the abuse of Let's Encrypt's infrastructure, doesn't blame the Certificate Authority (CA), but nevertheless, points out that other CAs have issued a combined number of 461 SSL certificates containing the term "PayPal" in the certificate information, which were later used for phishing attacks... Phishers don't target these CAs because they're commercial services, but also because they know these organizations will refuse to issue certificates for certain hot terms, like "PayPal," for example. Back in 2015, Let's Encrypt made it clear in a blog post it doesn't intend to become the Internet's HTTPS watchdog.
Of course, some web browsers don't even check whether a certificate has been revoked. An anonymous reader writes: Browser makers are also to blame, along with "security experts" who tell people HTTPS is "secure," when they should point out HTTPS means "encrypted communication channel," and not necessarily that the destination website is secure.

3 of 250 comments (clear)

  1. also.. by Anonymous Coward · · Score: 4, Interesting

    they are changing the name to "Let's Phish"

  2. Foundamental flaw of the CA infrastructure by Cigaes · · Score: 4, Interesting

    This story shows the fundamental flaw of the TLS CA infrastructure: it only certifies that the connection is established with the reported DNS domain name. That is not utterly useless, but not far from it.

    The protection against man-in-the-middle attack is relevant only in a handful of cases. With home Internet access, MitM can more or less only be performed by network operators, who have a lot to lose if they are caught playing these games. It is more of an issue with public access, but still rather minor.

    What would be really useful would be CA that certify the honesty of the sites. “If you see our green padlock, that means this site is reliable. If they scam you, we will refund you.”

    I will not hold my breath.

  3. Letsencrypt versus a 'real' CA by sjwest · · Score: 3, Interesting

    I think most people here would spot a fake site without the ev,

    Even CA's have issued 'bad' certs to people - Symantec and others have also failed the test.