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Lateral Violence and Horizontal Hostility at Work

Hostility at work often comes sideways from peers, not just from the top. Learn what lateral violence looks like, why peers turn on each other, and how to set boundaries that protect your work and energy.

Written by Matthew DyckFounder, Mobbed at Work | Workplace Harm Educator

Published September 3, 20267 min readVersion 1.0

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Lateral Violence and Horizontal Hostility at Work

When people think about abuse of power at work, they usually imagine top-down pressure. A toxic executive yelling at staff, or an intimidating manager threatening someone's job.

Power struggles don't always travel downward. Very often, the most intense hostility comes from the people sitting right beside you: your peers, teammates, and coworkers at the exact same level on the org chart.

In organizational psychology and healthcare fields, this is known as lateral violence or horizontal hostility. It happens when workers direct their frustration, insecurity, or competition sideways at their peers rather than upward at the broken systems causing their stress.

If you have ever felt targeted, undermined, or frozen out by colleagues who should have been your allies, you know how disorienting it can be. Let's look at why peers turn on peers, what this hostility looks like in practice, and how you can protect yourself.


What Lateral Violence Actually Looks Like

Lateral violence rarely looks like an open fistfight in the hallway. It usually shows up as subtle, everyday undermining that slowly chips away at your credibility and peace of mind.

Common signs of horizontal hostility include:

  • Sabotaging information: Intentionally delaying key updates, withholding files, or leaving you out of casual chats so you look unprepared in front of leadership.
  • Undermining credit: Downplaying your contributions during group presentations, taking credit for your ideas, or framing your achievements as lucky accidents.
  • Weaponized body language: Eye-rolling, heavy sighing, smirking, or exchanging knowing glances with other peers whenever you speak up in a meeting.
  • Behind-the-scenes gossip: Spreading rumors about your competence, personal life, or motives to newer staff or across other departments.
  • Cliques and in-group policing: Enforcing unspoken rules about who gets to speak, who gets invited to informal lunches, and how things "have always been done here."
  • Passive-aggressive fault-finding: Publicly picking apart minor typos or tiny errors in your work while ignoring major mistakes made by members of the in-group.

Why Do Peers Turn on Each Other?

It's natural to ask why colleagues, who are often facing the exact same heavy workloads and bad management, would attack one of their own instead of banding together.

Horizontal hostility usually flourishes in specific types of workplace environments:

1. Oppressive or High-Stress Systems

When workers feel powerless under rigid management, unmanageable workloads, or unfair policies, they feel intense frustration. Because challenging leadership feels too risky to their careers, that suppressed anger gets redirected sideways at an easier target.

2. Artificial Scarcity and Competition

When leadership fosters an environment where raises, praise, promotions, or job security feel scarce, coworkers stop seeing each other as teammates. They start seeing each other as threats. Tearing down a high-performing peer becomes a twisted survival strategy to protect their own position.

3. Envy of High Performers or Independent Thinkers

Peers who care deeply about quality, ethics, or innovative problem-solving can unintentionally make low-effort or cynical coworkers look bad. Undermining the conscientious employee is a way for the group to maintain an easy status quo without having to raise their own standards.

4. The "Hazing" Mentality

In many established fields, veteran employees hold a belief that because they suffered through toxic conditions when they were newer, everyone else should have to suffer too. Anyone who suggests healthier, more efficient ways of working gets targeted for "not paying their dues."


How to Protect Yourself from Lateral Hostility

Dealing with peer-level hostility requires steady boundaries and a shift away from emotional engagement:

1. Don't Look for Validation in the In-Group

The hardest pill to swallow is accepting that these peers may never be your friends. Trying to earn the approval of people committed to misunderstanding you only drains your energy and gives them more leverage. Shift your mindset: treat them strictly as professional contacts, not confidants.

2. Keep All Deliverables and Deadlines Transparent

Lateral saboteurs rely on obscurity. Protect your work by making your contributions visible. Use shared project management boards, copy relevant stakeholders on deliverable handoffs, and follow up spoken conversations with clear, brief emails: "Hi [Name], attaching the revised deck we discussed for tomorrow's 10:00 AM presentation."

3. Refuse to Take the Bait in Public

When peers roll their eyes or make passive-aggressive digs in front of others, they're fishing for an emotional reaction. An angry outburst gives them the exact excuse they want to label you "dramatic" or "difficult." Pause, maintain steady eye contact, and respond with calm, neutral curiosity: "Did you have a specific question about that data point, Sarah?"

4. Keep Your Personal Life Private

When horizontal hostility is present, personal details (family life, weekend plans, outside interests, health updates) get twisted into office gossip. Keep your conversations at work focused on tasks, timelines, and general professional topics. Save your authentic self for the safe people outside of work.


You Don't Have to Fight Every Battle

Peer hostility is exhausting because it turns your daily workspace into a minefield of petty rivalries and quiet sabotage.

Remember: their hostility is a direct reflection of their own insecurity and the unhealthy pressure of the system around you. It doesn't define your worth, your intelligence, or your professional future.

Stay grounded in your craft, protect your work with clear paper trails, and save your energy for the relationships and opportunities that actually help you grow.

When to get more support

If things feel heavier than an article can hold, that's a sign to reach for more support, not a sign you're doing anything wrong.

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Written by

Matthew Dyck

Founder, Mobbed at Work | Workplace Harm Educator

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