Hackers are always trying new things and discovering new vulnerabilities to exploit. The online world changes quickly and the same is true of security. Good security is about minimizing risk. If anybody tries to sell you a 100% secure solution, they’re scamming you. You’ll never be completely safe, but there’s a lot you can do to minimize your risk.
Some people like to say that the CMS-System isn’t secure. That’s not necessarily true—it depends on how you set up and use it. If you’re not keeping it updated or following bad practices, then no, it’s not secure. The reality is that 18% of the world’s websites are using for example WordPress, which makes it a huge target. So you need to be smart. You need to keep things updated and follow the best practices to lock your site down. Many security issues have little to do with the system and more to do with server vulnerabilities, cross-contamination and poor passwords. Bad decisions can undermine your site, and that’s true whether you’re using WordPress or any other solution.
There’s a fine balance between security and usability. Sometimes locking down your site makes it secure, but it’s hard to use. Sometimes making your site easier to use makes it less secure. We have to find the balance.