Hacking of computers at Belgian telecoms firm Belgacom, alleged to have been carried out by a British spy agency, was more far-reaching than previously thought and went undetected for more than two years, according to reports published on Saturday, Reuters reported.
News of the intrusion into Belgacom's networks first broke late last year when Belgium asked Britain, its NATO and European Union partner, to respond to allegations that its intelligence service was responsible.
Belgian newspaper De Standaard, Dutch paper NRC Handelsblad and The Intercept, a website that regularly reports on documents leaked by former U.S. security contractor Edward Snowden, published detailed accounts on Saturday of how the scheme is alleged to have worked.