kreb on security tao security exploit db phrack.org tor blog project zero cloudflare blog slashdot theregister.co.uk haveibeenpwned.com project honeyp

kreb on security tao security exploit db phrack.org tor blog project zero cloudflare blog slashdot theregister.co.uk haveibeenpwned.com project honeypot govt advisories e.g us-cert.cisa.gov Also you can keep tabs on blogs of cyber-security companies and infra/network domain companies