a backdoor is a vulnerability. no need to call it out separately, I don't think. I don't shop for groceries and canned corn, I shop for groceries. I don't li

a backdoor is a vulnerability. no need to call it out separately, I don't think. I don't shop for groceries and canned corn, I shop for groceries. I don't listen to music and <insert artist>, I listen to music. in fact, the way you separate them seems to indicate that you believe that backdoors are not vulnerabilities, and they absolutely are vulnerabilities. vulnerabilities are things that make you vulnerable. undocumented backdoors definitely make you vulnerable.