93% Of Websites Fail To Meet Security Standard
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93% Of Websites Fail To Meet Security Standard

Mozilla’s Observatory Tool Assess Website Security – And Many Fall Short.

April King, a security engineer at Mozilla, found that the vast majority of the world’s largest sites – 93.45% to be exact – are not implementing many modern security technologies which provide secure connections to their users and protect them from attacks such as cross-site scripting (CSS) and content injection.

The assessment of these sites was made by Mozilla’s own Observatory tool (which King designed). It conducts 11 different tests to see what security technologies a website is using, including HTTPS, HPKP (Key Pinning), CSP (Content Security Policy), and Subresource Integrity. It also scores sites on how well they use those technologies. Websites with sub-par configurations – like supporting HTTPS without automatically redirecting users – receive penalties.

King used her Observatory tool to automate scans of Alexa’s Top Million list, which ranks the world’s million largest websites. Her first scan took place in August 2016. To measure improvement, the Top Million were rechecked In October 2016, and again in June 2017. In the first scan 97.6% of sites failed the Observatory’s grading. Over the last 15 months, 42,000 websites have improved their security and no longer receive an F grade

While a 90%+ failure rate might make you feel like everything is terrible, the measured improvement is astounding. In fact, given that many of these technologies are new, and that integrating them into existing sites is so difficult, it’s encouraging to see adoption growing so quickly.

The number of B & C grades has risen by 207% and 330%, respectively. The number of sites receiving an A or A+ grade increased from 90 to 420. To receive an “A” grade you need to implement nearly every technology that the Observatory assesses.

The Mozilla Observatory has played a direct part in these improvements. King noted that 50,000 sites used the tool, made improvements, and then rechecked their grade to make sure they implemented the security measures correctly.

Failing the Observatory’s grading isn’t as bad as it sounds. Compared to similar tools, Observatory has higher standards and grades accordingly. For instance, without CSP, which is an incredibly important but also hard to implement technology, the best grade a website can get is a B+.

The Observatory tool has been used to scan more than 1.55 million different websites and assess their use of security technologies and protocols.  While the prospect of receiving an F grade may be scary, it’s a great (and free!) way to learn about what technologies are out there and how your site could benefit from them.

No one – not even expert engineers like King – expect you to fix everything overnight. It took major websites like The New York Times two years just to deploy HTTPS across their entire site. So give your site a scan and see how you stack up!

1 comment
  • Hi
    Of all of those 93% websites that fail how many are using caching plugins and plugins that set the http headers? Sorry but I am assuming that they are WordPress based. Maybe other CMS are involved…

    Caching plugins only cache the content and don’t include the http headers to although for speed.

    I have had WP Super Cache and HTTP Headers plugins installed and enabled at the same time and I don’t have any security because it is ignored, stripped out or not included. I have tested it on securityheaders.io and Observatory by Mozilla. Caching enabled = No web security and Caching disabled = Web security.

    This is a major security issue that needs to be addressed. So all the websites you tested did they have caching enabled and probably a PHP way of setting web security? If so they will fail all the time.

    I contacted both plugin authors and HTTP Headers author got back and said he fixed that problem. Basically, the settings are now saved directly to .htaccess file which is the way to go. I can now have caching and web security. My test results were inconsistent before but now consistent.

    These website owners must be thinking they are secured but in fact they aren’t because the way caching works.

    As soon as I turn off caching all my security settings work and I get a high score.

    I have mentioned this during the last week on Twitter and no one is listening apart from Global Sign.

    You can’t judge those websites until you know how they are set up.

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