Awareness of the additional security provided by HTTPS websites is increasing, but so too are HTTPS phishing websites. Cybercriminals are taking advantage of consumer trust of websites that encrypt connections with web browsers.
The risks of disclosing sensitive information such as credit card numbers on HTTP sites has been widely reported, with more sites now using the Hypertext Transfer Protocol Secure (HTTPS) to prevent man-in-the-middle attacks and improve security for website visitors. However, just because a website starts with HTTPS does not mean that website is safe.
HTTPS phishing websites also secure the connection. Divulging login credentials or other sensitive information on those sites will place that information in the hands of criminals.
A recent report from Netcraft shows more phishing websites are now using HTTPS to communicate, with the percentage of HTTPS phishing websites jumping from 5% to 15% since the start of 2017.
Internet users are now being warned if they are visiting a website that does not encrypt connections. Google Chrome and Firefox browsers have recently started displaying warnings on sites that are not secure.
The problem is that many users automatically assume that if a website starts with HTTPS it is safe and secure when that is far from the case.
Even if a website is genuine and encrypts communications, that does not mean the website cannot be compromised. If a hacker gained access to a website with a SSL certificate it would be possible to add pages that phish for sensitive information. The website would still display the green lock symbol and start with HTTPS.
HTTPS phishing websites may also have valid digital certificates meaning even Firefox and Google Chrome browsers will not flag the sites as potentially malicious. Those sites may also include the brand names of legitimate websites such as Facebook, Amazon, or PayPal. In the case of the latter, a recent report from the SSL Store revealed that there were 15,270 websites that contained the word PayPal which had been issued with SSL certificates.
The rise in HTTPS phishing websites shows that simply checking the protocol used by the site is no guarantee that the site is not malicious. Care must be taken when accessing any website, regardless of the protocol used by the site.
Businesses can improve protection by implementing a web filtering solution capable of reading encrypted web traffic. This will help to ensure employees are prevented from visiting malicious websites on their work computers, regardless of the protocol used by the sites.
WebTitan not only allows organizations to block websites by category, content or keyword, the web filtering solution also decrypts, reads, and then re-encrypts connections and will block phishing and other malicious websites. By inspecting HTTPS websites, WebTitan will also ensure access to any secure website is blocked if the site or webpage violates user-set rules on website content.