Penetration Testing
Test your systems like real attackers would - identify vulnerabilities, assess risks, and get expert guidance before threats strike.
TRUSTED BY INDUSTRY LEADERS WORLDWIDE
8+
years of expertise
600+
secured clients across Web2 & Web3
200,000+
threats prevented before exploitation
5,000+
assets protected (websites, apps, smart contracts,...)
24/7
monitoring and response
What is Penetration Testing (Pentest)?
Pentesting is like hiring ethical hackers to break into your system before real attackers do. Security experts simulate cyberattacks to uncover vulnerabilities in your systems, applications, and networks.
A weak pentest gives a false sense of security and leaves you exposed!
Lack of Expertise
leads to missed threats, leaving enterprises vulnerable to real-world attacks.
Weak Methodologies
overlook critical attack vectors like web apps, APIs, cloud, and mobile, creating security gaps.
Unclear Reports
bury teams in technical noise without CVSS scoring, attack insights, and clear fixes.
Poor Compliance
risks failures and penalties if testing doesn’t meet ISO 27001, SOC 2, PCI-DSS, HIPAA, or GDPR.
We test like real attackers, uncover critical risks, and provide clear fixes
Security Experts
with 8+ years securing industry leaders uncover vulnerabilities before attackers do.
World-Class Methodologies
follow MITRE ATT&CK, OWASP, and NIST frameworks for comprehensive testing.
Actionable Insights
prioritize risks with CVSS scoring, step-by-step remediation, and optional retesting.
Strong Compliance
ensures audit-ready reports aligned with ISO 27001, SOC 2, PCI-DSS, HIPAA, and GDPR.
How Our Security Process Works
step 1
You request our service
Step 2
We share a quote
Step 3
We conduct security assessment
Step 4
We provide report & remediation steps
Step 5
We perform follow-up review
Step 6
We provide certification and ongoing support
Inside Our Penetration Testing:
What We Analyze and What You Get
What We Can Test
We assess web apps, APIs, cloud, mobile, internal infrastructure, and more
- helping you define the right scope.
Web
Applications
Web
Applications
For: Websites, SaaS platforms, customer portals
Assets in Scope: Domains, subdomains, front-end & back-end components
Threats: Account takeovers, payment fraud, and data breaches
APIs
& Web Services
APIs
& Web Services
For: Web services, mobile backends, cloud integrations
Assets in Scope: API endpoints, authentication mechanisms, data exchange protocols
Threats: Unauthorized access, data leaks, and insecure API communications
Cloud
Infrastructure
Cloud
Infrastructure
For: AWS, Azure, Google Cloud, hybrid/on-premises setups
Assets in Scope: Virtual machines, storage buckets, IAM policies, databases, networking components
Threats: Data exposure, misconfigurations, and cloud account takeovers
Mobile
Applications
Mobile
Applications
For: IOS & Android apps (consumer and enterprise)
Assets in Scope: Mobile app binaries, API interactions, authentication flows
Threats: Data leaks, insecure storage, and unauthorized access
Networks
& IT Infrastructure
Networks
& IT Infrastructure
For: Office networks, corporate IT systems, data centers
Assets in Scope: IP ranges, firewalls, routers, VPN gateways, internal endpoints
Threats: Unauthorized access, malware infiltration, and lateral movement
Wireless
Networks
Wireless
Networks
For: Corporate Wi-Fi, guest networks, IoT devices
Assets in Scope: Wi-Fi access points, SSIDs, encryption protocols, connected devices
Threats: Eavesdropping, unauthorized access, and rogue access points
Blockchain
& Smart Contracts
Blockchain
& Smart Contracts
For: DeFi platforms, crypto wallets, NFT marketplaces
Assets in Scope: Smart contract code, blockchain nodes, cryptographic keys
Threats: Smart contract exploits, private key leaks, and transaction vulnerabilities
IoT & Industrial Control Systems (ICS)
IoT & Industrial Control Systems (ICS)
For: Smart devices, industrial control systems (ICS), ATMs, automotive systems
Assets in Scope: Embedded firmware, hardware interfaces, networked control units
Threats: Remote hacking, firmware attacks, and operational disruptions
Identity
& Access Security
Identity
& Access Security
For: Active Directory, SSO solutions, authentication systems
Assets in Scope: User directories, authentication flows, access control policies
Threats: Privilege escalation, identity fraud, and unauthorized account access
Social Engineering
& Physical Security
Social Engineering
& Physical Security
For: Employee security awareness, physical access controls
Assets in Scope: Email security systems, employee access levels, physical security controls
Threats: Phishing scams, impersonation attacks, insider threats, and unauthorized physical access
Third-Party
& Supply Chain Security
Third-Party
& Supply Chain Security
For: Vendors, SaaS integrations, external platforms
Assets in Scope: Third-party applications, API integrations, shared access credentials
Threats: Compromised vendors, insecure integrations, and data leaks from third parties
How You Want It Tested
You can select from Black Box, Grey Box, or White Box testing based on the level of access and depth required.
Black Box
Simulates an external hacker with no insider knowledge
Grey Box
Mimics an insider threat or a
compromised user
White Box
Provides full access for deep
security analysis
Top Critical Risks Uncovered
These are just some of the security gaps we identify. Our testing goes beyond automation, combining expert analysis and real-world attack simulations to uncover hidden vulnerabilities and strengthen your defenses.
Risk: Unauthorized access, data breaches.
Risk: Data theft, system compromise.
Risk: Full system takeover, data leaks.
Risk: Malware infections, system control.
Risk: Account takeovers, data exposure.
Risk: Network takeover, ransomware spread.
Smarter Pentesting - Fast, Sharp, Collaborative
Deliverables
Frequently Asked Questions
Why CyStack?
Unlike traditional penetration tests that rely on static reports and fragmented communication, our CyStack Security Platform provides real-time vulnerability tracking, structured risk prioritization, and seamless collaboration - so security teams and developers stay aligned throughout the process.
We follow world-class security standards and methodologies such as OWASP, NIST, CVSS, and Bugcrowd VRT. No noise, no guesswork - just clear, data-driven security insights.
Certifications and Awards
What Our Clients Say
What truly impressed me was CyStack’s ability to detect vulnerabilities not only in our system but also in a major partner’s system, which we had trusted for its IT security. Their expert team ensures timely patching with every update, providing invaluable support for our cybersecurity needs
Thai Nguyen
CTO
CyStack has consistently delivered exceptional support in managing incidents, resolving issues, and offering detailed process consultation with professionalism.
Truong Bui
CTO
CyStack provides high-quality products that stand on par with global standards. We are greatly impressed by their enthusiasm and professionalism throughout our partnership.
Trac Do
Founder & CEO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
What truly impressed me was CyStack’s ability to detect vulnerabilities not only in our system but also in a major partner’s system, which we had trusted for its IT security. Their expert team ensures timely patching with every update, providing invaluable support for our cybersecurity needs
Thai Nguyen
CTO
CyStack has consistently delivered exceptional support in managing incidents, resolving issues, and offering detailed process consultation with professionalism.
Truong Bui
CTO
CyStack provides high-quality products that stand on par with global standards. We are greatly impressed by their enthusiasm and professionalism throughout our partnership.
Trac Do
Founder & CEO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
What truly impressed me was CyStack’s ability to detect vulnerabilities not only in our system but also in a major partner’s system, which we had trusted for its IT security. Their expert team ensures timely patching with every update, providing invaluable support for our cybersecurity needs
Thai Nguyen
CTO
CyStack has consistently delivered exceptional support in managing incidents, resolving issues, and offering detailed process consultation with professionalism.
Truong Bui
CTO
CyStack provides high-quality products that stand on par with global standards. We are greatly impressed by their enthusiasm and professionalism throughout our partnership.
Trac Do
Founder & CEO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
What truly impressed me was CyStack’s ability to detect vulnerabilities not only in our system but also in a major partner’s system, which we had trusted for its IT security. Their expert team ensures timely patching with every update, providing invaluable support for our cybersecurity needs
Thai Nguyen
CTO
CyStack has consistently delivered exceptional support in managing incidents, resolving issues, and offering detailed process consultation with professionalism.
Truong Bui
CTO
CyStack provides high-quality products that stand on par with global standards. We are greatly impressed by their enthusiasm and professionalism throughout our partnership.
Trac Do
Founder & CEO
Using CyStack’s managed cybersecurity services has been a game-changer for ONUS. Their 24/7 monitoring, tailored solutions, and cost-efficient expertise allow us to focus on scaling our core business without the burden of building an in-house security team.
Chien Tran
Founder & CEO
