# Jan Krissler

> German computer scientist and biometry hacker

**Wikidata**: [Q56216503](https://www.wikidata.org/wiki/Q56216503)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Jan_Krissler)  
**Source**: https://4ort.xyz/entity/jan-krissler

## Summary
Jan Krissler is a German computer scientist and biometric security researcher known by his pseudonym "starbug". He is recognized for his demonstrations bypassing biometric security systems, particularly vein recognition.

## Biography
- Born: 1950
- Nationality: Germany
- Known for: Demonstrating vulnerabilities in biometric security systems, especially vein recognition
- Employer(s): Not specified in source material
- Field(s): Computer Science, Biometric Security, Hacking

## Contributions
Jan Krissler, operating under the pseudonym "starbug," gained significant attention for his research into circumventing biometric authentication systems. His most notable contribution involves demonstrating the vulnerability of vein recognition technology. In 2018, he successfully replicated a person's vein pattern using a 3D-printed hand cast in wax, proving that this supposedly secure biometric method could be fooled. This work, reported by sources like Le Monde, highlighted critical security flaws in systems relying on vein patterns for authentication. His practical attacks contribute directly to the field of biometric security research, exposing weaknesses and pushing for stronger security measures in authentication technologies.

## FAQs
### Q: What is Jan Krissler's pseudonym?
A: Jan Krissler is widely known by his pseudonym "starbug," which is recognized as his pseudonym by sources like Le Monde.

### Q: How does Jan Krissler bypass biometric systems?
A: He creates physical replicas of biometric features, such as using a wax cast to replicate vein patterns for bypassing vein recognition systems, demonstrating significant vulnerabilities.

### Q: Where does Jan Krissler live and work?
A: He resides in Berlin, Germany, as confirmed by references like Die Zeit.

### Q: What biometric system did Krissler successfully defeat?
A: He notably defeated vein recognition technology by creating a 3D-printed hand cast in wax to replicate a person's vein pattern.

### Q: What is Jan Krissler's primary occupation?
A: He is a computer scientist specializing in security research, particularly focused on hacking and exposing vulnerabilities in biometric systems.

## Why They Matter
Jan Krissler's work is crucial for advancing the security and reliability of biometric authentication systems. By practically demonstrating vulnerabilities in technologies like vein recognition, he provides concrete evidence of their weaknesses, driving industry awareness and the development of more robust security protocols. His research directly influences how security professionals and organizations perceive and implement biometric solutions, pushing for stronger protections against spoofing attacks. Without his contributions, the field of biometric security might have been slower to acknowledge and address the critical flaws inherent in these systems, potentially leaving sensitive data and access control points vulnerable.

## Notable For
- Demonstrated the vulnerability of vein recognition technology by replicating vein patterns using a wax cast in 2018.
- Operates under the pseudonym "starbug," recognized as such by major publications.
- Key researcher in exposing flaws in biometric security systems, particularly authentication methods.
- German computer scientist with a specific focus on biometric hacking and security research.
- Associated with Berlin, Germany, as his place of residence.

### H3: Biometric Security Research
Jan Krissler's primary work centers on hacking biometric security systems. He focuses on creating physical replicas of biometric features to bypass authentication technologies. His most publicized success involved creating a wax cast of a hand to defeat vein recognition systems, proving this method was not as secure as previously believed. This work highlights the critical need for stronger biometric security protocols.

### H3: Pseudonym and Public Recognition
He is almost exclusively known by his pseudonym "starbug." This pseudonym has been formally acknowledged in media reports like Le Monde, which explicitly refers to "starbug" as his pseudonym in the context of his biometric security research. This alias is central to his public identity in the field.

### H3: Residence and Nationality
Jan Krissler is a German national residing in Berlin, Germany. His residence in Berlin is confirmed by sources like Die Zeit. His German citizenship is consistently listed across structured data points. This context grounds his professional activities within the German technology and security landscape.

## References

1. [Source](https://www.zeit.de/zustimmung?url=https%3A%2F%2Fwww.zeit.de%2Fdigital%2Fdatenschutz%2F2014-12%2F31c3-biometrie-austricksen-iris-scanner-fingerabdruck)
2. [Source](https://www.lemonde.fr/pixels/article/2018/12/28/biometrie-les-systemes-de-reconnaissance-des-veines-peuvent-etre-dupes-avec-une-maquette-en-cire_5403362_4408996.html)