Practical tips for preventing meeting hijacking, data leakage, and recording security for Irish SMEs using Zoom, Teams, and Google Meet.
When a Donegal-based professional services firm held a sensitive board meeting over Zoom recently, an uninvited guest joined the call undetected. It is a real and growing risk for Irish businesses relying on video conferencing platforms like Zoom, Microsoft Teams, and Google Meet. With remote and hybrid work now standard, video conferencing security is a core part of your overall cybersecurity posture.
The rise of virtual collaboration and its risks
The pandemic accelerated the adoption of virtual collaboration tools, making platforms like Zoom, Microsoft Teams, and Google Meet indispensable for Irish SMEs. These tools offer flexibility and efficiency, connecting teams, clients, and partners across geographical divides. However, this convenience comes with significant security implications.
Cybercriminals are increasingly targeting video conferences, exploiting vulnerabilities to gain access to sensitive data, disrupt operations, or launch further attacks. Common threats include 'Zoombombing' (unauthorised intrusion), data leakage through unencrypted communications or shared screens, and the surreptitious recording of confidential discussions. For Irish businesses, these risks can lead to reputational damage, financial loss, and potential breaches of data protection regulations like GDPR.
Essential security measures for Zoom, Teams, and Google Meet
A layered approach to security matters for protecting your virtual meetings. While each platform has its nuances, core principles apply across Zoom, Teams, and Google Meet.
Strong authentication and access control
One of the most effective ways to prevent unauthorised access is to enforce stringent authentication. Always require multi-factor authentication (MFA) for all users, especially those accessing sensitive meetings. This adds an extra layer of protection beyond just a password.
Use waiting rooms (Zoom) or lobbies (Teams) to control who enters a meeting, so hosts can vet participants before admitting them and keep uninvited guests from joining directly. Avoid using Personal Meeting IDs (PMIs) for sensitive meetings; generate unique, complex meeting IDs and require passwords for all sessions, and share these securely, ideally through internal, encrypted channels. For internal meetings, restrict participation to users from your organisation's domain, a control that is particularly useful in Teams and Google Meet for ensuring only authorised personnel can join.
In-meeting security controls
Once a meeting is underway, hosts have several controls at their disposal to maintain security and privacy. These features matter for preventing disruption and data exposure.
Once all expected participants have joined, lock the meeting to prevent any further attendees from entering, a simple but effective measure against late-joining intruders. Familiarise yourself with host controls to mute participants, remove disruptive individuals, or disable their video; in platforms like Zoom, you can also temporarily suspend participant activities. Restrict screen sharing to the host or specific presenters only, to prevent accidental or malicious sharing of sensitive information by other participants. Disable or monitor in-meeting chat and file sharing features, especially in external meetings, since these can be vectors for malware or unauthorised data transfer.
Data privacy and recording best practices
Protecting the confidentiality of discussions and shared information matters. This involves understanding how data is handled and managing recording permissions carefully.
Where available and appropriate for your use case, enable end-to-end encryption (E2EE). It isn't always practical for larger meetings or those requiring dial-in, but it offers the highest level of communication security. Establish clear policies for recording meetings, and always inform participants when a meeting is being recorded, as required by GDPR and other data protection regulations; store recordings securely, ideally on encrypted cloud storage with restricted access. Be mindful of what is shared on screen or through chat, and avoid discussing highly sensitive information if you are unsure about the security posture of all participants or the platform's encryption capabilities.
What this means for your business
For Irish SMEs, neglecting Zoom Teams security and the security of other video conferencing platforms can have severe consequences. A single security incident could lead to a data breach, regulatory fines from the Data Protection Commission (DPC), and significant damage to your reputation and client trust. The National Cyber Security Centre (NCSC) Ireland consistently advises businesses to adopt a proactive stance on cybersecurity, and video conferencing is no exception.
Implementing these best practices doesn't require a massive IT overhaul. It's about establishing clear policies, educating your staff, and using the security features already built into your chosen platforms. Consider these steps: create a clear, concise video conferencing security policy that all employees must adhere to; regularly train staff on secure meeting practices, including how to identify and report suspicious activity; and periodically review your platform settings and user configurations to ensure they align with your security policy.
By taking these practical steps, Irish SMEs can significantly reduce their exposure to risks, ensuring that their virtual collaboration remains productive and secure. This approach protects your business and demonstrates due diligence to regulators like the CCPC and your clients.
Free Resource: Download The Irish SME Cyber Survival Guide, 10 controls based on NCSC Ireland & ENISA guidance. Plain English, no jargon.
Ready to strengthen your security posture?
Pragmatic Security works with Irish SMEs to build practical, proportionate cybersecurity programmes that protect your business, satisfy regulators, and give you confidence. Whether you need NIS2 compliance support, a vCISO on retainer, or a one-off security assessment, we're here to help.
Book a free 20-minute strategy call today, no jargon, no hard sell, just practical advice from an experienced Irish cybersecurity professional.
Or contact us at [email protected] or call +353 (0)87 0515 776.
How compliant is your business? Check your compliance readiness with our free Compliance Checker.
Related reading
- Securing the Hybrid Workplace: A Cybersecurity Framework for Irish SMEs
- BYOD Security Policies: Balancing Flexibility and Protection
- VPN vs Zero Trust Network Access: Which Is Right for Your Remote Team?
Take the next step
If your cybersecurity posture and where to focus first is something you're thinking about, the best starting point is a structured conversation.
Book a free 20-minute call with our vCISO team. We work with Irish SMEs across every sector, no jargon, no scare tactics, just clear advice on what to do next.
Book Your Free 20-Minute Call →
[^1]: NCSC Ireland, Advice for Organisations: https://www.ncsc.gov.ie/advice-for-organisations/ [^2]: An Garda Síochána, National Cyber Crime Bureau: https://www.garda.ie/en/crime/cyber-crime/ [^3]: Data Protection Commission Ireland: https://www.dataprotection.ie
Pragmatic Security, Cybersecurity advisory for Irish businesses. Based in Donegal, Ireland. CISA, CISSP, CISM certified advisors.