Investigate malicious, abusive and DDoS traffic on any Vercel project using the Vercel CLI firewall and logs, verify each suspect with evidence, then block it (IP blocks, deny rules, rate limits), confirm the blocks work, and report. Use when asked to look into attacks, traffic spikes, scrapers, vulnerability scanners, fake crawlers, credential stuffing, API abuse, unexpected 429s or firewall activity on a Vercel deployment.