Screenshot redaction for IT admins and MSPs
Short answer: an admin console screenshot is a map. Hostnames, internal IPs, usernames, version numbers and domain names describe your estate to anyone who collects them, and the places these screenshots go, vendor tickets, community forums, documentation, are full of people and crawlers that collect them. Scrub the identifiers, keep the error, and the image still does its job. If you run other people's networks, double everything: a multi-tenant console leaks your client list as readily as your own infrastructure.
A console screenshot is reconnaissance, pre-assembled
The first phase of any attack on a network is building a picture of it: what runs where, what it is called, which versions, who administers it. That picture is normally expensive to assemble. A console screenshot hands it over pre-assembled, because admin tooling is designed to surface exactly that information densely:
- Hostnames and naming conventions, which describe the layout of everything you did not screenshot.
- Internal IP ranges and network segments, the floor plan of the estate.
- Software names and version numbers, which an attacker reads as a list of applicable vulnerabilities.
- Usernames and admin accounts, half of every credential pair, plus the email format the whole company uses.
- Domain and tenant names, the anchor that ties the rest to a real organization.
- The browser around the console: tabs, bookmarks and the URL bar, each leaking tools and endpoints of their own.
None of these is a breach by itself, which is exactly why they travel so freely. They are crumbs, and crumbs are additive: every unscrubbed screenshot makes the next one more useful to whoever is collecting.
The MSP multiplier: other people's networks in frame
Running client infrastructure adds a second layer to all of this, because multi-tenant tooling shows more than one customer at a time. The tenant switcher lists every client you serve. The unified alerts view mixes client A's outage with client B's name. The RMM dashboard is a directory of companies, devices and contacts. A screenshot taken to help one client can disclose the existence, identity and stack of several others, plus the fact that you are the common supplier, and your client list is itself commercially sensitive information.
The rule that follows: before a screenshot of a multi-tenant view goes anywhere, including to one of the clients in it, every tenant except the relevant one gets scrubbed. It is the same discipline support teams apply to other customers visible in support screenshots, with higher stakes, because here the bystanders are whole companies.
What leaks from a typical admin screen
| Screen | What leaks | What to scrub |
|---|---|---|
| Directory / user list | Every account, the admin accounts among them, the email format, and group names that describe the org. | Usernames and emails wholesale. A permissions question is answerable from roles and groups without a single real account visible. |
| Monitoring dashboard | Hostnames, IPs, service names and versions, and which of them are currently down, which is an invitation with a timestamp. | Host identifiers and addresses, keeping the graph shapes and thresholds that make the point. |
| MDM / RMM console | Device names that embed user names, serial numbers, OS versions and, for MSPs, the tenant list. | Device and owner identifiers, serials, and every tenant that is not the subject of the conversation. |
| Firewall / network config | Topology, rules, open ports, VPN endpoints and address ranges, the literal map of the way in. | Addresses, ranges and endpoint names. The rule logic usually makes its point with the values gone. |
Where these screenshots end up
The audiences are what make admin screenshots different from most. They go to vendors, who are outside the network; to forums, which are public and permanent; and into documentation, which outlives every assumption you made when you wrote it.
- The vendor ticket. Support needs the error and the config structure, not your hostnames and tenant names. Scrub identifiers and the ticket loses nothing diagnostic.
- The forum or community post. Public, indexed, and read by the most technically capable audience your screenshots will ever have. Strictest rules apply, the same logic as redacting before posting publicly.
- Internal docs and runbooks. A wiki screenshot with a real admin URL, a real hostname and half a credential in a terminal sits there for years, readable by every future employee and contractor. Write docs from scrubbed captures and they stay shareable forever.
- Chat with colleagues. The quick terminal screenshot is how keys and tokens leak most often; that loop has its own guide in hiding API keys and emails in screenshots, and the developer-side version in screenshot redaction for developers is close kin to this one.
The loop: capture, scrub, attach
Admins screenshot constantly, mid-incident, mid-ticket, mid-handover, so a redaction step only survives if it adds seconds, not minutes. With ScrubShot it lives inside the capture:
- Press the shortcut. It captures the console, the dashboard or the terminal you are looking at.
- Drag the Scrub tool over hostnames, IPs, usernames, tenant names and anything with a version number that does not need to travel. Each pass is pixelated straight into the image.
- Sweep the frame edges: the URL bar, the tab strip, the tenant switcher, the notification corner.
- Circle the error or the setting with the Marker so the reader skips straight to it.
- Copy and paste into the ticket, the post or the doc.
The scrub rewrites the pixels in the file, and the whole edit happens on your own machine with nothing uploaded for processing, which is presumably how an admin would want a redaction tool to behave anyway. The reasoning is laid out in redacting screenshots on a Mac without uploading them.
FAQ
- Is an internal hostname or IP address really worth scrubbing?
- On its own, an internal IP gets nobody in. But hostnames carry naming conventions, naming conventions describe the estate, and an attacker assembling a picture of your network collects exactly these crumbs: what you run, what you call it, which versions, what sits next to what. Each screenshot is harmless alone and additive together, and you do not control where they accumulate. Scrubbing them costs seconds.
- What should an MSP scrub that an internal admin might not think about?
- Other clients. Multi-tenant consoles love to show the tenant switcher, the client list in a sidebar, or another customer's alerts in a shared dashboard, and a screenshot for client A that includes client B's name has just disclosed your client list and their stack in one image. Before anything leaves a multi-tenant view, scrub every tenant except the one the conversation is about.
- How careful do I need to be in a community forum post?
- Maximally. A forum post is public, indexed and effectively permanent, and it is read by exactly the audience that knows what to do with a hostname, a version banner or a console URL. Forums are also where screenshots are most useful, so the answer is not to stop posting them, it is to scrub identifiers first and let the error and the config structure do the talking.
- Can a scrubbed credential or hostname be read back out of the image?
- No. The Scrub tool rewrites the area into the file as blocks whose colors are sampled at random from the region, not derived from the characters underneath, so there is no annotation layer to remove and nothing for depixelation tools to match against. For an audience as technical as the one reading your tickets and forum posts, that distinction is the one that matters.
Try it
ScrubShot is a Mac app made for the capture-to-ticket loop: press the shortcut, drag over the hostnames, accounts and tenants that should not travel, annotate the error that should, then copy or save. The cleaned screenshot is the only version that ever leaves your Mac. There is a free 7-day trial with no card required. After that it is $30 once.