Notifying a suspicious behaviour: an overview

ACER notifies the National Regulatory Authorities (NRAs) of suspicious behaviour in two main ways:

  • by sharing the screened alerts on a monthly basis; and

  • by sharing an Initial Assessment report, which includes details about the suspicious behaviour by one or more market participants

The first figure provides a rounded monthly average of the alerts triggered (in thousands) manually assessed (in hundreds), and shared with the NRAs for the years 2017 and 2023. 

Note: the monthly average is calculated taking into account only the months for which alerts were shared with the NRAs.


The second figure provides an overview of the number of Initial Assessment reports shared with NRAs (in total per year since 2015).


The map provides an overview of the number of alerts shared per country for the year 2023.


Looking at the total records reported to ACER since the beginning of data reporting​, the alerts statistics indicate the amount of resources required in order to assess the REMIT data.​