UK's Financial Conduct Authority (FCA) has warned the UK branch of US brokerage Interactive Brokers (IBUK) to take action in respect of alleged failure to report market abuse in the form of insider dealing.
According to FCA, in the period from 6 February 2014 to 28 February 2015 IBUK breached Principle 3 of the FCA's Principles for Businesses, namely failed to take care and exercise control the management risk systems and to identify and report possible market abuse by its customers.

IB shoud really keep a look out for these possible insider trading and market abuse by customers We shall see how the Committee will proceed further..

Not always such events could be easily monitor and spot , especially when a strong interest is involved