Esports Integrity Commission Opened Inquiry into Historical Spectator Bug Exploitation

The eSports Integrity Commission (ESIC) has announced that it is investigating all matches on the professional stage over the past four years to identify the use of coaching bug. To do so, the organization will contract with Michal Slovinski and Steve Dudenhoeffer, who are the authors of the report that brought the coaches of Heroic, MIBR and Hard Legion to the trial.

On 2 September ESIC issued sanction outcomes against three coaches who utilised a bug in the CS:GO spectator mode in order to achieve an advantage (“Spectator Bug”). ESIC has since reviewed a large quantity of evidence and believes that it is in the best interest of the industry to open an inquiry into the potential exploitation of this bug as far back as 2016. In doing so, ESIC will contract the services of Michal Slowinski and Steve Dudenhoeffer (the discoverers of wrongful use of this exploit) to work with ESIC in the fulfilment of the inquiry.

What ESIC will be doing

ESIC believes that detection, exposure and punishment of any entity involved in cheating in esports is in the best interest of competitive integrity, and, ultimately, the interests of the industry.

After careful consideration of the volumes of material available to ESIC for review, we have reason to believe that exploitation of the Spectator Bug by other parties than those already sanctioned, may have existed historically. Accordingly, ESIC has decided to establish an inquiry into the exploitation of the Spectator Bug dating back to 2016.

The inquiry will be completed in the following manner (summarised for ease of comprehension, but more complex in reality):

  1. Analysis of approximately 25,000 demos pertaining to CS:GO games played between 2016 and 2020 (both through the use of AI and by visual inspection). Analysis will begin on 2020 demos progressing back in time to 2016 demos;
  2. Based on evidence found, ESIC will conclude on standardised sanctions which will apply to offending parties;
  3. Manual review of key suspect demos, determinations made by ESIC in accordance with standardized sanctions; and finally
  4. Public release of tranches of standardized sanctions on a monthly

Duration and Reporting

Due to the workload involved, ESIC estimates that the investigation will take approximately 8 months to complete (subject to additional complications that may arise during the investigative process). ESIC will issue a monthly report (if substantial determinations are required) or a quarterly report (if unsubstantial determinations are required).

Applicability of determinations issued as a result of the inquiry

As per all investigations conducted by ESIC, our determinations will have effect across all of our membership including ESL, DreamHack, BLAST, WePlay, Eden Esports, UMG, UCC, and more. ESIC’s appeals process will be available to any individual wanting to appeal a determination made to the Independent Disciplinary Panel.

Confession Period

ESIC recognizes that people sometimes make mistakes and regret their decisions. In ESIC’s view, wherever possible, it is important to work towards reform and rehabilitation of  offending parties into individuals who value competitive integrity and can recommence serving the CS:GO community. Accordingly, ESIC will opened a ‘Confession Period’ for any offending parties that want to come forward ahead of our investigation with an admission of wrongdoing. The Confession Period opens as of the date of this release and will close on the 13th of September 2020 at 23:00 CET.

Upon the assessment of an admission, and subject to the discretion of the Commissioner, ESIC may choose to apply a concession to any sanction that may apply to the offending party based on the presence and quality of the admission provided.

Admissions of guilt can be made directly to the commissioner by email: [email protected]

Collaboration with

ESIC would like to thank for their support in this investigation. will be assisting ESIC by providing complete access to approximately 5TB of Demo footage, stored on their servers. Without this access, the investigation would require a considerable amount of additional resources to complete.’s support of our investigation is a clear indicator of their appreciation for competitive integrity in the CS:GO scene as well as their sensitivity to bad actors in the community.

Message to the CS:GO community

We appreciate the vocal support that we have seen of our work in protecting the scene from bad actors.  We understand that the past week of revelations has been tough for many people within the CS:GO community. Rest assured, ESIC is doing everything in its power to ensure that we uproot and remove bad actors for the benefit of the scene in the long term.