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20 April 2017
| Alan Burkitt-Gray
BT has filed a number of patents for blockchain technology, as the company steps up its investment in R&D in this area.
UK business newspaper CityAM has uncovered seven filings
from BT related to developments in blockchain, a distributed database
technology that has initially found applications with
Bitcoin, the online payment system.
According to the newspaper, one of the patent applications
relates to detecting and reducing the effects of a blockchain
attack. Another is for access control.
Two researchers at BT Global Services, Gery Ducatel and Joshua
Daniel, are named on the patents, says CityAM. According to his
LinkedIn profile, Ducatel is a specialist in IT security based
at BT’s Adastral research centre. Daniel, based in
the same place, is a member of BT’s research in
security futures practice. He was originally an aerospace
The paper uncovered details of the applications filed since
July 2016 with the World Intellectual Property Organisation. BT
confirmed the report and said blockchain is "one of the many
areas" the company is working on.
CityAM says that BT says in its security-related patent
application: "Despite the architecture of blockchain systems,
malicious attacks present a threat to the security and
reliability of blockchains. One such malicious attack involves
a single entity (or entities under common control) procuring or
appearing to procure sufficient computing resource to
constitute more than half of all mining resource working with a