Can My Employer Read My Teams Chats? Yes, Through Admin Tools

Your boss cannot open your Teams messages in Teams, but your employer can read them. On a work account, the company can read your Microsoft Teams chats, including private one-to-one chats and group chats. Teams stores a copy of every chat message in the Exchange Online mailboxes of the people in the chat, and admins with Microsoft Purview roles can search those mailboxes with eDiscovery, export the results, and run policies that scan messages for set words. What your employer cannot do is open your chats from Teams itself. Your manager, without an admin role, sees only the chats they are in. Reading yours is a separate, logged step, usually taken by IT, legal or HR compliance for an investigation or a legal request.

Slack works the same way on paid plans: the workspace owns the messages, and owners can export them. Deleting your side does not settle it either; how to delete a DM in Slack shows what a deleted Slack DM leaves behind.

Who can read your Teams chats

A Teams administrator and a compliance admin are often the same person in a small company, which is why "IT can read my chats" is usually true in practice.

How an employer reads Teams chats

eDiscovery and Content search. In the Microsoft Purview portal, an admin with an eDiscovery role picks your mailbox as a location, searches for Teams content, and reviews or exports what it finds. A chat with three people is stored three times, once in each mailbox, so leaving a chat or deleting your copy does not remove anyone else's. Can my employer see deleted Teams messages shows the PowerShell for this and what happens to deleted and edited messages.

Communication compliance. A policy scans chat messages for words, phrases or types of content, such as harassment, sharing of customer data or insider trading terms, and sends matches to named reviewers. Reviewers see the flagged message and the messages around it. It is common in banks, brokerages and healthcare, where regulators require message supervision.

Data loss prevention. DLP policies scan messages as you send them and block ones that contain things like card numbers or passport numbers. Your message may show a "blocked" notice. DLP checks content; it does not collect chats for someone to read later.

Export and archiving tools. Regulated companies often copy every message to an archive (Smarsh, Global Relay and others) through the Teams export APIs. Everything in the archive can be searched.

Proof: the Graph call that reads every chat

The export API in the table is real and public. Microsoft Graph, the API that apps use to reach Teams data, publishes a description of every call it offers, and anyone can read it without signing in. We ran this script against it on 27 October 2026:

#!/usr/bin/env python3
# Read Microsoft Graph's public API description (no sign-in) and print
# the calls and fields that let a company read Teams chats.
import re, urllib.request
def get(u): return urllib.request.urlopen(urllib.request.Request(u, headers={"User-Agent": "curl/8"}), timeout=120).read().decode()
meta = get("https://graph.microsoft.com/v1.0/$metadata")
for f in re.findall(r'<Function Name="getAllMessages"[^>]*>.*?</Function>', meta, re.S):
    print("getAllMessages bound to", re.search(r'Name="bindingParameter" Type="([^"]+)"', f).group(1))
msg = re.search(r'<EntityType Name="chatMessage"[^>]*>(.*?)</EntityType>', meta, re.S).group(1)
props = re.findall(r'<Property Name="(\w+)"', msg)
print("chatMessage fields:", len(props))
print("fields about deletes and policies:", [p for p in props if re.search(r"delet|polic", p, re.I)])

Output:

getAllMessages bound to Collection(graph.team)
getAllMessages bound to Collection(graph.channel)
getAllMessages bound to Collection(graph.chat)
getAllMessages bound to Collection(graph.deletedTeam)
chatMessage fields: 22
fields about deletes and policies: ['deletedDateTime', 'policyViolation']

The third line is the one that matters for private chats. Microsoft's reference page for it lists the request as GET /users/{id}/chats/getAllMessages and the permission as Chat.Read.All for an application only: there is no version a signed-in manager can call. So a company app that an admin has approved can pull every message from every chat a person is in, one-to-one chats included, with no chat open and nothing shown to you. The deletedDateTime field means a message you delete can still come back from the API with the time you deleted it, and policyViolation is where a DLP block like the one above is recorded on the message.

What stays private, and what does not

• • Private one-to-one chats: not private from the company. "Private" means private from coworkers, not from the account owner.
• • Chats with people outside the company. Stored in your mailbox like any other chat. The same mailbox holds your work email, which admins search the same way; see can my employer read my work email.
• • Meeting chats. Stored like group chats, in the mailboxes of the people in the meeting.
• • Teams on your own phone. Still your work account; the chats live in the company tenant, not on the phone.
• • Personal Teams (Teams free, with a personal Microsoft account). Your employer has no access to that account, even on the same computer. The computer itself is another matter.
• • Calls. Separate rules; see can my employer listen to my Teams calls.

Teams encrypts messages in transit and at rest. It does not end-to-end encrypt chats, which is what lets these admin tools read them. End-to-end encryption in Teams applies to some one-to-one calls, not to chat.

Does anyone read your Teams chats day to day?

Usually not. A search takes a deliberate action by someone with a Purview role, and Purview records it in the audit log. Most companies search chats for specific reasons: a legal hold or lawsuit, an HR complaint, a security incident, or a regulator. Companies with communication compliance policies are the exception, because matching messages go to reviewers automatically.

Your employer can also see a lot without reading a single message: sign-ins, message counts per day, meetings and calls from the Teams usage reports, and your presence. That side is in does Teams track your activity, and the full list of ways employers watch remote staff is in how do employers monitor remote workers.

Teams vs Slack on reading your chats

The Slack side is in can Slack admins see your DMs. For Zoom meeting chat and Team Chat, see can my employer see my Zoom chats. For Google Chat, see can my employer see my Google Chat messages.

FAQ

Can my boss see my Teams messages? Not in Teams. They see only chats they are in. Someone with a compliance admin role can search your messages and share them with your boss.

Are Teams chats private? From coworkers, yes. From your employer, no. The company owns the account and can search it.

Can my employer see what I ask Copilot in Teams? Yes. Copilot prompts and answers are stored in the same mailboxes and found by the same eDiscovery search. See can my employer see my Copilot chats.

Can my employer see my Teams chats if I use my own phone? Yes, if you use your work account. The chats are stored in the company's Microsoft 365, not on the phone.