3 website security issues you should constantly watch for or risk a data breach

To your customers, your website is the gateway to your products and services. But in the eyes of cybercriminals, it’s an entry point to your sensitive data. Without proper protections in place, attackers may be able to exploit your site’s vulnerabilities and gain unauthorized access, resulting in detrimental repercussions for your business.

In today’s world of ever-evolving security risks and hacking techniques, it’s not enough to set and forget the security measures you put in place to protect your site. What was once considered a foolproof security best practice may become penetrable by hackers tomorrow. Additionally, any new features and services you add to your site could inadvertently come into conflict with or override existing security protocols without your knowledge. Routine monitoring and testing is required to ensure your walls of defense continue to stand strong over time.

So what do you need to monitor for specifically? Here are 3 common security issues that should be on your checklist.

  • Published: 11-11-2021

  • Related Category: Network Security

  • Type of Content: Articles

  • Owner: TrustedSite

Expired or outdated SSL and TLS certificates

SSL and TLS certificates ensure that your customer’s data is transmitted safely with encryption. Over time, consumers have become more conscious of what makes a site safe and know to look for the lock icon in their browser’s address bar which indicates a site has a valid certificate and is secure.

Once they’ve installed an SSL or TLS certificate, many website owners think their job is done. However, depending on the duration of the certificate you purchase, it could expire in as little as 1 year. If you forget to renew or the credit card you paid with expires, your certificate will become invalid and your site will be flagged as not secure. Being proactive about keeping your site’s certificates up-to-date is a simple but pivotal step to protecting your customer’s data.

Make sure every certificate in use:

  1.  Hasn't expired and is issued by a reputable Certificate Authority
  2.  Matches the domain it's being used on
  3.  Has an up-to-date cipher suite version
  4.  Isn't shared with untrusted or out-of-scope domains

By using stronger cipher suite versions, you make it more difficult for an attacker to eavesdrop on communications and avoid having to address vulnerabilities caused by less secure versions. Focusing on the version and using modern encryption is the easiest way to avoid multiple vulnerabilities down the road.

Additionally, shared certificates can pose a major risk if you don't trust that each listed domain is protecting the private keys. In general, you shouldn’t use certificates shared with out-of-scope domains.

Missing HTTP security headers

HTTP security headers are a subset of HTTP headers that can increase your website’s defense against common attacks like cross-site scripting (XSS) and clickjacking. Most modern browsers are built with some protections against these kind of attacks, but these settings can be turned off by default. By including HTTP security headers, you can force additional protections to be enabled and avoid vulnerabilities.

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