Tech Bureau
Tech Bureau, Corp. is an internet and software development company based in Nishi-ku, Osaka, Japan.
Native name | テックビューロ株式会社 |
---|---|
Romanized name | Tekku Byuro Kabushiki Gaisha |
Privately held company | |
Industry | Internet and software development |
Founded | June 16, 2014 |
Founder | Takao Asayama |
Headquarters | 1-15-18 Utsubohommachi, Nishi-ku, , |
Services | Zaif cryptocurrency exchange |
Number of employees | Approx. 60 (2018) |
Website | techbureau.jp |
Services
Zaif
Zaif is a cryptocurrency exchange that handles currencies including Bitcoin, Bitcoin Cash and Monacoin. As of September 2018, it was ranked as the 35th largest cryptocurrency exchange by turnover,[1] and was one of sixteen cryptocurrency exchanges licensed and regulated by the Japanese Financial Services Agency (FSA).[2]
On September 14, 2018, the exchange was hacked and the equivalent of $60 million in cryptocurrency was stolen. The hackers reportedly gained access to "hot wallets" through which the exchange held funds for immediate transactions. Tech Bureau said that it did not notice the breach until Monday, September 17, and that the breach was then promptly reported to police and the FSA.[3] The hack resulted in a suspension of withdrawals and deposits, and a bailout agreement with Fisco, a Japanese company that injected 5 billion yen in financial support to Tech Bureau.[1][2]
According to analysis completed by Bitfury’s Crystal Blockchain Analytics engineering team, 30% of the stolen Bitcoins are still located at addresses related to the hacker. Another 24% were sent to Binance for exchange/withdrawal. The remaining 46% were split into small amounts and sent to various addresses.[4][5]
COMSA
COMSA is an integrated blockchain solutions provider offering initial coin offering fundraising and blockchain technology integration services.[6]
References
- Reidy, Gearoid (2018-09-19). "Hackers Steal $60 Million From Japanese Crypto Exchange Zaif". www.bloomberg.com. Retrieved 2018-09-20.
- Yuda, Masayuki (2018-09-30). "Japanese cryptocurrency exchange Zaif hacked for $60m". Nikkei Asian Review. Retrieved 2018-09-20.
- Nagata, Kazuaki (2018-09-20). "¥6.7 billion in digital money stolen from Osaka firm". The Japan Times Online. ISSN 0447-5763. Retrieved 2018-09-20.
- Wolfson, Rachel. "Tracing Illegal Activity Through The Bitcoin Blockchain To Combat Cryptocurrency-Related Crimes". Forbes. Retrieved 2020-03-05.
- Group, The Bitfury (2018-11-14). "Crystal Blockchain Analytics: Investigation of the Zaif Exchange Hack". Medium. Retrieved 2020-03-10.
- "COMSA - 実ビジネスのブロックチェーン導入を支援するICOソリューション". comsa.io (in Japanese). Retrieved 2018-09-20.