Welcome, I'm Ash King

I'm a Web Developer

Uncovering security risks where others see features. Expertise in ethical hacking, application security, and building resilient software.

Recent Work Get In Touch

Security Blog

Recent discoveries and technical writeups

Open redirects are not dead! Or are they?

Over the last few years doing bug bounties, it's becoming more and more common for companies to reject reports about Open Redirects. Once upon a...

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Bypass Microsoft Teams Tenancy Permission - Edit Sent Messages

Back in December 2019 I reported a Microsoft Teams Tenancy Permission bypass that allowed a user to modify...

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Abusing corporate URL shorteners

URL shorteners are great! They allows users to turn a 200 character url into something substansially less. It's ideal for those...

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Companies I've Helped Secure

Vulnerabilities discovered and reported to strengthen security postures

Meta

Many reports since 2018

Apple

Shazam Android Vulnerability

Microsoft

Multiple Reports

Google

Android Vulnerabilities

PayPal

Android Vulnerabilities

Uber

No disclosure on details

Many more

Many prefer no disclosure

Availability

I'm available for web, API and Android application penetration testing, bug bounty engagements, live hacking events, and other security-related projects.

Whether you're securing your digital assets, testing for vulnerabilities, or need an expert eye on your system’s defenses, I’m here to help.

Get in touch to collaborate on securing the digital world!

Get in touch

Recent Events

Security conferences and hackathons I've attended

H1-4420

HackerOne 4420

I attended the first ever live hacking event in London. It was an incredible experience collaborating with other security researchers on finding vulnerabilities in real-time.

POST COMING SOON!
H1-702

HackerOne 702

This event took place in Las Vegas with high-profile clients. A unique opportunity to test my skills against complex security challenges.

POST COMING SOON!

Interested in inviting me to your event?

I'm always looking for new challenges and opportunities to share my knowledge with the security community. If you're hosting an event or know someone who is, I'd love to hear from you.

Get in Touch

Get In Touch

Questions, feedback, or work inquiries? I'd love to hear from you.

Let's Work Together

Whether you need help with security testing, vulnerability assessment, or secure development practices, I'm here to help. I'm particularly interested in challenging projects that push the boundaries of web and mobile security.

Twitter
AshleyKingUK
LinkedIn
AshkingUK
Location
Gosport, United Kingdom