Daniel Tomescu

Senior Manager / Ethical Hacker

BIOGRAPHY

<Senior Manager / Ethical Hacker at KPMG Romania> by day <Bug Bounty Hunter / Curious Security Researcher> by night. 

Abusing postMessage API for 6 figures/year

The postMessage API is a very versatile option for achieving secure communication between different browser windows, generally used for bypassing same-origin policy restrictions. It is generally used in complex, functionality-rich web applications and has the potential to streamline complex business flows, but is also very often poorly implemented. This presentation will highlight tens of postMessage vulnerabilities found in the last year, varying from XSS issues to account takeovers. Millions of people potentially affected, cool stories, big bounties, not-very-fixed vulnerabilities. Everything is vulnerable, from web chats to payment flows, from some of our favorite Romanian companies to global giants that power our everyday activities.

Are you the next cyber security superstar?

If you are passionate about an information security topic or you have strong technical skills developing researches on your own, you should definitely Apply at Call for Papers. By submitting you will have the chance to showcase your work to +2000 attendees.

Other speakers joining this year

Maksim Iavich

PROFESSOR, HEAD OF CYBER SECURITY DIRECTION AT CAUCASUS UNIVERSITY, PRESIDENT SCIENTIFIC CYBER SECURITY ASSOCIATION (SCSA)

Danny Henderson Jr.

Senior Information Security Advisor SecureWorks

Ionut Cernica

Penetration Tester

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At Orange Business Services, we help our customers transform their industries, reimagine their services, create a positive impact and unleash the power of their data into an amazing and trusted resource.

With the dual expertise as a global operator coupled with the agility of an end-to-end integrator, Orange Business Services is a global network-native, digital services company. From connectivity, smart mobility services and the cloud to artificial intelligence (AI), analytics and cybersecurity, Orange Business Services helps businesses at every stage of their data management. Orange Business Services is represented in Romania by the business division of Orange Romania and helps large companies, SMEs and public authorities to transform their organizations through the use of technology and digital information.

www.orange.ro

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