You could be forgiven for reading recent headlines about massive and easily exploitable security vulnerabilities in the internet’s core infrastructure and thinking: Stop the web, I want to log off.

The most recent one ranks as one of the worst in terms of making any individual person online feel powerless: Teams of researchers using artificial intelligence tools from OpenAI and Google found serious and long-standing weaknesses in a scripting language called PHP used at about 70 percent of all websites.