Is there evidence that Cisco is intentionally creating backdoors? A backdoor by mistake is incompetent, not evil. Building censored search products and collec

Is there evidence that Cisco is intentionally creating backdoors? A backdoor by mistake is incompetent, not evil. Building censored search products and collecting the amount of consumer data that google does without clearly informing consumers is evil, and it's clearly intentional. Cisco may not be perfect, but I've yet to see evidence that it's blatantly evil