Below0Day Penetration and AWS AI LLM Testing

Below∅Day is a specialized cybersecurity firm headquartered in Milwaukee, Wisconsin, with a distributed team of elite security professionals across the United States. Our team includes penetration testers, malware analysts, security architects, auditors, policy experts, and trainers who are deeply experienced in offensive security. At Below∅Day, we focus exclusively on red-team services not just running standard vulnerability scans, but emulating real-world adversaries to uncover and help remediate true business risk. What makes us different? We invest time to deeply understand your systems and practices, so our assessments are not surface-level. Our testing is comprehensive, and our reporting is detailed, with walk-throughs, reproducible steps, code snippets, and even video proof-of-concept when needed. Below∅Day after you remediate any vulnerabilities we find, we offer free follow-up testing to validate that the fixes actually worked. Our Services Below∅Day offers a full suite of advanced penetration testing, AWS Cloud Testing, red-team services to help organizations identify, assess, and strengthen their security posture:

Internal &AWS Cloud Penetration Testing: Testing of internal networks (on-prem or cloud) to simulate an insider threat.

AI/LLM Offensive Security Assessment is a tailored penetration test that simulates real-world attacks against your AI and large language model workflows, APIs, and integrations to uncover prompt injection, data exfiltration, model abuse, and privilege-escalation risks. Below0Day then delivers clear, prioritized remediation guidance so your AI capabilities stay secure, compliant, and resilient against emerging threats.

External Penetration Testing: Assessing externally exposed assets (websites, servers, services) as if attacked from the internet.

Web Application Testing: Comprehensive security assessments of web apps in pre-release and production states, covering both front-end and back-end.

Server & Desktop Application Testing: Deep evaluation of desktop or server-based applications (Windows, macOS, Linux) including architecture review, code analysis, fuzzing, and active exploitation.

Wireless Penetration Testing: Testing of wireless networks to find misconfigurations, rogue access points, or other exploitable weaknesses.

Mobile Application Testing: Static and dynamic security testing on mobile applications to uncover vulnerabilities in authentication, data handling, and communications.

PCI Penetration Testing: Specialized testing aligned with PCI DSS to verify your systems’ compliance and resilience around payment card data.

Industrial Control Systems (ICS) / SCADA Testing: Evaluating security of critical infrastructure systems to simulate attacks on industrial environments.

Phishing Services: Simulated phishing campaigns to assess employee susceptibility, combined with detailed reporting and actionable recommendations. Physical Penetration testing, Vhishing /SMS Phishing