In our continuing efforts to keep our clients apprised of emerging cyber threats associated with COVID-19 and remote workplaces, we draw your attention to cyber risks associated with using communications platforms. Researchers recently uncovered several potential network security and privacy issues associated with virtual meeting conferencing software.   

Cyber Security Threats: Virtual Meeting Bombing

Hackers have infiltrated web conferences with a tactic known as “Bombing”. This occurs when a malicious actor interrupts web conferences as uninvited guests. They enter web conferences and post disturbing graphic images to disrupt communications.

Zoom-based Social Engineering Schemes 

A recently published a report* reveals that 1,700 domains associated with the one of the largest virtual meeting softwares have been newly registered since January 2020. Of those 1,700 domains, the report state that 4 percent contain suspicious characteristics. This is indicative of the start of formal phishing campaigns with virtual meeting-related fraudulent emails. In addition, the report identified malicious files with names mimicking naming conventions from virtual meeting softwares. If malicious files are downloaded on a device, the files may install software that enables attackers to download additional malware onto the device. 

Data Collection & Potential Privacy Violations

According to the New York Times **, New York Attorney General Letitia James began an inquiry into data collection and security practices that relate to potential vulnerabilities that could, "enable malicious third parties to, among other things, gain surreptitious access to consumer webcams."

In addition Motherboard reported *** that software contained within mobile apps for virtual meetings was sending user data to social media platforms, whether you had a social media account or not. The virtual meeting provider responded, saying it was removing the tracking software.

FBI Guidance

In response to these threats a recent FBI warning was issued that was specific to online classroom hacking. They issued the following guidance ****

  • Do not make meetings public. Utilize two options to make a meeting private: require a meeting password or use the waiting room feature and control the admittance of guests.
  • Do not share a link to a teleconference on an unrestricted publicly available social media post. Provide the link directly to specific people.
  • Manage screen sharing options. Change screen sharing to “Host Only.”
  • Ensure users are using the updated version of remote access/meeting applications. 
  • Ensure that your organization’s telework policy or guide addresses requirements for physical and information security.

Victims of a teleconference hijacking, or any cyber-crime, can report it to the FBI’s Internet Crime Complaint Center at Additionally, if you receive a specific threat during a teleconference, please report it to us at or call the FBI Boston Division at (857) 386-2000.


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