No Slack In The System

Hybrid working has made internal comms channels and collaboration tools necessary for most businesses, with Enterprise Instant Messaging (IM) services such as Microsoft Teams and Slack becoming increasingly ubiquitous.

Slack, with an estimated 20m daily users, has become the platform of choice for many of the world’s most prominent organisations, including IBM, Amazon, PayPal and Airbnb. And it is clear why - enabling communication and collaboration between team members, no matter where they are, answers many of the needs of today’s hybrid workforce

However, while giving with one hand, corporate IM services, like Slack, are taking with the other. As well as opening up communication, they are also proving to be a new cyber attack vector that cybercriminals are using to devastating effect. 

Last year, EA Games was the victim of a high-profile cyber attack in which Slack played an integral role. Gaining access to EA’s internal Slack channel, the hacker could pose as an employee to request login information for sensitive files or send files with embedded malware to enable lateral movement and escalation of privileges. Similarly, Uber recently warned employees to stay off Slack after a similar criminal infiltration using phishing methods to persuade an employee to hand over login details. According to EY, 40% of organisations have reported a cyber intrusion directed at their remote work environments. 

Hackers will use any method and any channel to target companies, with comms channels ripe for breaching company defences. However, the answer is not to give up on tools like Slack. It is about reducing exposure to risk while still offering effective connectivity.

A Hybrid Risk Requires Holistic Protection

The post-pandemic boom in hybrid and remote working models has changed the world of work - in many ways, for the better. According to Future Forum research, those working in these models are 52% more likely to say that their company’s culture has improved over the last two years, 11% reported greater work-life balance, 25% less stress, and 6% higher productivity.

There are also risks associated with this shift, with data privacy challenges, increased risk of cyberattacks, limited defense and response capabilities and compliance violations the top concerns,

There is no one solution to these concerns. Instead, organisations must take a holistic approach to hybrid workplace cybersecurity. As always, it takes a combination of people, processes, and technology to keep the doors closed. Here we explore what this looks like in practice. 

Encompassing Employee Engagement:   When employees are dispersed, it is even more crucial that each and every one of them understands and acts on their responsibilities to minimise cyber risk. The headline-grabbing attacks on EA and Uber may have been avoided had employees spotted the signs of phishing. Just as many companies have educated employees on the risks of opening email attachments or verifying the identity of a sender, there has been less focus on communicating those same risks can rear their heads on IM channels, like Slack. When introducing any new platform users must be educated on the types of risks that could present themselves. 

As the Chief Information Security Officer at Softbank recently told KPMG, “Since human error can be considered one of the greatest vulnerabilities in security it’s crucial to eliminate this threat by educating employees and helping them become better digital citizens at work and at home.”

Similarly, employees using their own devices on private networks can throw up numerous issues. Remote access with multi-factor authentication secures data on the move and in the office with encryption, ensuring that data can only be accessed by authorised users. Using end users’ mobile devices as their mobile token then acts as a second layer of authentication.

Fully stacked Security Tools Without The Stress:   There is a massive range of tools and technologies available to combat cyberattacks, and in the hybrid working environment, it is essential to harness a multi-layered approach. Encompassing standard tools such as anti-virus, anti-malware, and anti-spam should now be a given. 

However, other key technologies to consider include data leakage prevention (DLP) to ensure users don’t send sensitive or critical information outside the network with pattern-matching techniques that detect and prevent sensitive information and files from passing through the network perimeter. Advanced Threat Protection (ATP) protects against zero-day and other sophisticated targeted attacks. This sandbox protection detects, analyses and evades advanced attacks designed to bypass traditional defences (targeting specific people or functions).

Alongside this, the use of firewalls, site-to-site encryption, intrusion detection and prevention and proxy blocking all play a part in minimising hybrid risk. Increasingly, AI and machine learning also play a key role in detecting rogue behaviour, with advancements moving forward at a breakneck pace.

Hope For Hybrid Security

For many organisations managing this encompassing suite of developing technologies proves a burdensome task. Instead, many are turning to real-time and constantly updated managed security services which sit between enterprise networks and the internet. Protecting from external threats and intellectual property leaks, such managed services provide secure remote access to employees wherever they work. 

The recent Slack hack cases show, again, that hackers will use any means and any channel to achieve their goals. As new digital tools become business-critical, more doors will open. By adopting an in-depth, multi-layered approach to security, it is possible to predict, detect, alert and respond to any threats, including those that have yet to emerge.

 David Nelson is Cybersecurity Product Lead at Maintel 

You Might Also Read: 

Microsoft Teams Is Vulnerable To GIFShell Attacks:

 

« EU Parliament Website Knocked Offline
Defending Against North Korea's Cyber Threats »

Infosecurity Europe
CyberSecurity Jobsite
Perimeter 81

Directory of Suppliers

TÜV SÜD Academy UK

TÜV SÜD Academy UK

TÜV SÜD offers expert-led cybersecurity training to help organisations safeguard their operations and data.

DigitalStakeout

DigitalStakeout

DigitalStakeout enables cyber security professionals to reduce cyber risk to their organization with proactive security solutions, providing immediate improvement in security posture and ROI.

LockLizard

LockLizard

Locklizard provides PDF DRM software that protects PDF documents from unauthorized access and misuse. Share and sell documents securely - prevent document leakage, sharing and piracy.

CSI Consulting Services

CSI Consulting Services

Get Advice From The Experts: * Training * Penetration Testing * Data Governance * GDPR Compliance. Connecting you to the best in the business.

Infosecurity Europe, 3-5 June 2025, ExCel London

Infosecurity Europe, 3-5 June 2025, ExCel London

This year, Infosecurity Europe marks 30 years of bringing the global cybersecurity community together to further our joint mission of Building a Safer Cyber World.

Ethio-CERT

Ethio-CERT

National Cyber Emergency Readiness and Response Team of Ethiopia.

MNCERT/CC

MNCERT/CC

MNCERT/CC is the national Computer Emergency Response Team for Mongolia.

Protenus

Protenus

Protenus provide a solution to proactively monitor and protect patient privacy in the electronic health record (EHR).

StackRox

StackRox

StackRox delivers a container-native security platform that adapts detection and response to new threats.

AKATI Sekurity

AKATI Sekurity

AKATI Sekurity is a security-focused consulting firm providing services specializing in Information Security and Information Forensics.

DigitalStakeout

DigitalStakeout

DigitalStakeout enables cyber security professionals to reduce cyber risk to their organization with proactive security solutions, providing immediate improvement in security posture and ROI.

UK Research & Innovation (UKRI)

UK Research & Innovation (UKRI)

UKRI works in partnership with universities, research organisations, businesses, charities, and government to create the best possible environment for research and innovation to flourish.

Militus

Militus

Militus provides the only information security service available that learns and analyzes your network over time using a custom-built network-based toolset.

Secmation

Secmation

Secmation are an agile engineering services firm providing advanced DoD level security design and consultation services for both commercial and defense hardware and software applications.

Cardonet

Cardonet

Cardonet is an IT Support and IT Services business offering end-to-end IT services, 24x7 IT Support to IT Consultancy, Managed IT and Cyber Security.

Red Goat Cyber Security

Red Goat Cyber Security

Red Goat Cyber Security have created excellent, informative and interactive Social Engineering Awareness training which is suitable for all levels of staff.

Accenture

Accenture

Accenture is a leading global professional services company providing a range of strategy, consulting, digital, technology & operations services and solutions including cybersecurity.

ThreatView by Turaco Labs

ThreatView by Turaco Labs

ThreatView combines extensive experience in digital forensics with advanced analytics and threat detection capabilities to protect eCommerce websites.

Neeve

Neeve

Neeve is an edge cloud platform transforming smart buildings and spaces, making them more secure, smarter, and more sustainable.

RealmOne

RealmOne

RealmOne addresses the most challenging issues in the realms of defense and cyberspace, adapting to the continuously changing demands of our national security customers.

ioSENTRIX

ioSENTRIX

ioSENTRIX offers tailored, risk-focused assessments that reduce true business risk.