"The API security assessment for our platform was outstanding. The expertise in GraphQL and REST security was pivotal in securing our microservices."
Marcus Thorne
@fintechsecurit
Available for VAPT, AI security & SOC projects — and training
Sudhakar ReddyCo-Founder & CTO
I break into web apps, APIs, mobile apps and AI systems so attackers can't — then I train the people who defend them. Co-Founder & CTO of CRIS InfoTech and Lead Trainer at Hacktr Technologies.
CEH · CCT (EC-Council) Hyderabad · worldwide
<hacking with purpose, defending with intent/>
skr@hackwithskr: ~/engagementNmap
$ ▍
6+
Years
100+
Projects
300+
Vulns found
6000+
Malware samples
4000+
Students
⟩
venturesWhere I Work
Secure businesses, train the people who defend them, and help those people get hired.
Co-Founder & CTO
CRIS InfoTech
Cybersecurity company where I lead technology and delivery — VAPT/WAPT, API and mobile pentesting, SAST, secure code review and AI/LLM security.
- ⟩VAPT practice & methodology I set up
- ⟩4-member tester bench I lead
- ⟩In-house AI attack agent + LLM scanner
- ⟩24/7 SOC, forensics and IR
Lead Trainer
Hacktr Technologies
Cybersecurity and AI security training institute in HITEC City, Hyderabad, where I lead all training.
- ⟩VAPT, SOC and AI & LLM Security tracks
- ⟩CEH v13-aligned, 80% hands-on labs
- ⟩Classroom + live online, 4 daily batches
- ⟩Placement & interview support
Careers portal
Hacktr Technologies AI
Hacktr's AI career portal, built on the latest technologies — course access, progress tracking, job listings, an ATS resume builder and AI mock interviews.
- ⟩Cybersecurity & AI security jobs
- ⟩ATS resume builder + AI mock interviews
- ⟩Job-readiness support for students
⟩
exploreExplore the Site
Eight pages — move your mouse over the tiles.
01
About
Who I am, what I train, companies, portals, bug bounty and labs.
02Services
VAPT, SOC, AI/LLM, malware, forensics, IR and training.
03Projects
AI tools I built, IoT projects and case studies.
04Skills
Strengths, competencies and tools.
05Experience
BERRY9 → freelance → Co-Founder & CTO.
06Certifications
CEH, CCT and training.
07Resources
Guides, tips and research.
08Contact
Business, training or a quick hello.
⟩
toolkitMy Toolkit
46 industry-standard tools — drag the keys, tap to press.
Burp Suite Pro
OWASP ZAP
SQLMap
Nuclei
ffuf
Postman
Semgrep
Nmap
Metasploit
Nessus
Qualys
Wireshark
BloodHound
Impacket
MobSF
Frida
Objection
Drozer
Splunk
Sentinel
QRadar
Elastic
Wazuh
Splunk SOAR
TheHive
CrowdStrike Falcon
Defender for Endpoint
SentinelOne
Ghidra
IDA Free
x64dbg
YARA
FLARE VM
REMnux
Volatility
Autopsy
KAPE
FTK Imager
MISP
OpenCTI
VirusTotal
Maltego
Shodan
Garak
PyRIT
Promptfoo
⟩
reviewsWhat People Say
Voices from clients, students and security teams I've worked with worldwide.
"Sudhakar built our entire detection stack from scratch. MITRE-mapped, tested with Atomic Red Team, and tuned to near-zero noise."
Priya Nair
@detectionengin
"Sudhakar is the best trainer for VAPT I've found — top-tier remote lab infrastructure and real-time project exposure."
Liam Johnson
@vapttraininggr
"Started as a complete beginner — six months later I cracked my OSCP and landed a junior pentester role. The labs are unreal."
Rohit Sharma
@juniorpenetrat
"Excellent cloud and AI security guidance with practical attack and defense techniques. A reliable partner for enterprise monitoring."
Klaus Schmidt
@cloudsecuritya
"His Active Directory module clicked things for me that 3 paid courses didn't. BloodHound finally made sense."
Ananya Iyer
@redteamtrainee
"The SIEM and EDR labs provided a very realistic environment. The mentorship helped me secure a SOC role in Doha!"
Fatima Al-Zahra
@socoperationsa
"I joined the SOC bootcamp jobless. Within 8 weeks I had two SOC L1 offers. Forever grateful."
Mohammed Faiz
@socanalystl
"The API security assessment for our platform was outstanding. The expertise in GraphQL and REST security was pivotal in securing our microservices."
Marcus Thorne
@fintechsecurit
"Sudhakar built our entire detection stack from scratch. MITRE-mapped, tested with Atomic Red Team, and tuned to near-zero noise."
Priya Nair
@detectionengin
"Sudhakar is the best trainer for VAPT I've found — top-tier remote lab infrastructure and real-time project exposure."
Liam Johnson
@vapttraininggr
"Started as a complete beginner — six months later I cracked my OSCP and landed a junior pentester role. The labs are unreal."
Rohit Sharma
@juniorpenetrat
"Excellent cloud and AI security guidance with practical attack and defense techniques. A reliable partner for enterprise monitoring."
Klaus Schmidt
@cloudsecuritya
"His Active Directory module clicked things for me that 3 paid courses didn't. BloodHound finally made sense."
Ananya Iyer
@redteamtrainee
"The SIEM and EDR labs provided a very realistic environment. The mentorship helped me secure a SOC role in Doha!"
Fatima Al-Zahra
@socoperationsa
"I joined the SOC bootcamp jobless. Within 8 weeks I had two SOC L1 offers. Forever grateful."
Mohammed Faiz
@socanalystl
"Beginner-friendly training covering real-world scenarios. Practical demonstrations with updated industry tools."
Sofia Rossi
@websecurityspe
"The way Sudhakar teaches Burp + business-logic flaws is just next level — I'm now actively bug-bountying."
Karthik Reddy
@bugbountyhunte
"The LLM red-team report exposed five jailbreak classes our internal team had missed. Genuinely changed how we ship AI features."
Hiroshi Tanaka
@aiproductsecur
"AI security course was ahead of its time. I'm the only LLM security person at my company now and it's all because of this."
Neha Kapoor
@aisecurityengi
"Red team simulations were on another level — clear chain of attack, business-impact framing, and remediation we could actually ship."
Diego Alvarez
@headofinfosec
"Patient, deeply technical, and gives real industry context. Best mentor I've had in 4 years of trying to break into cyber."
Vikram Singh
@cybersecuritys
"Hired Sudhakar for a sensitive M&A security review. Discretion, technical depth and clear executive reporting — all top-tier."
Charlotte Dubois
@maadvisor
"Sudhakar's mobile pentest module helped me find my first CVE in an Android SDK. Life-changing class."
Aditi Verma
@mobilesecurity
"Thank you Sudhakar sir — I got the job. Cleared the L2 SOC panel at an MNC two weeks after the bootcamp."
Harish Kumar
@socanalystlpla
"Got placed as a VAPT engineer — three offers in one month. The real-time lab projects set my resume apart."
Sandeep Rao
@vaptengineerpl
"From a non-IT degree to a cloud security role in seven months. Thank you for not letting me quit halfway."
Pooja Shetty
@cloudsecuritye
"Placed as a junior red teamer straight out of the AD attacks module. BloodHound was basically the whole interview."
Vivek Anand
@juniorredteame
"Beginner-friendly training covering real-world scenarios. Practical demonstrations with updated industry tools."
Sofia Rossi
@websecurityspe
"The way Sudhakar teaches Burp + business-logic flaws is just next level — I'm now actively bug-bountying."
Karthik Reddy
@bugbountyhunte
"The LLM red-team report exposed five jailbreak classes our internal team had missed. Genuinely changed how we ship AI features."
Hiroshi Tanaka
@aiproductsecur
"AI security course was ahead of its time. I'm the only LLM security person at my company now and it's all because of this."
Neha Kapoor
@aisecurityengi
"Red team simulations were on another level — clear chain of attack, business-impact framing, and remediation we could actually ship."
Diego Alvarez
@headofinfosec
"Patient, deeply technical, and gives real industry context. Best mentor I've had in 4 years of trying to break into cyber."
Vikram Singh
@cybersecuritys
"Hired Sudhakar for a sensitive M&A security review. Discretion, technical depth and clear executive reporting — all top-tier."
Charlotte Dubois
@maadvisor
"Sudhakar's mobile pentest module helped me find my first CVE in an Android SDK. Life-changing class."
Aditi Verma
@mobilesecurity
"Thank you Sudhakar sir — I got the job. Cleared the L2 SOC panel at an MNC two weeks after the bootcamp."
Harish Kumar
@socanalystlpla
"Got placed as a VAPT engineer — three offers in one month. The real-time lab projects set my resume apart."
Sandeep Rao
@vaptengineerpl
"From a non-IT degree to a cloud security role in seven months. Thank you for not letting me quit halfway."
Pooja Shetty
@cloudsecuritye
"Placed as a junior red teamer straight out of the AD attacks module. BloodHound was basically the whole interview."
Vivek Anand
@juniorredteame
⟩
blogResources — Guides & Research
Field notes from offensive engagements, SOC operations and AI security research.
⟩
connectLet's Work Together
VAPT engagements, SOC consulting, AI/LLM security assessments, incident response or training at Hacktr Technologies — tell me what you're protecting and I'll reply within one working day.
1. Scoping call
30 minutes on what you need — apps, APIs, SOC, AI or training.
2. Proposal
Clear scope, rules of engagement, timeline and price.
3. Test, report, retest
Findings with PoC and fixes, then a free retest.
Security projects
CRIS InfoTech · Co-Founder & CTO
VAPT, SOC, AI/LLM security, forensics, incident response
contact@crisinfotech.comTraining & courses
Hacktr Technologies · Lead Trainer
Batches, corporate training, career & placement help
info@hacktrtechnologies.comTalk to me directly
Sudhakar Reddy · LinkedIn
Speaking, collaborations, mentoring — message me on LinkedIn
Message on LinkedIn