An address still sitting in the clipboard

Minutes to undo

The clipboard holds one thing at a time and holds it until something else takes the slot. That slot currently has whatever you copied last in it, and it is readable by more than the window you copied it from.

Osiris market addresses

osiriseultmx3so5ef6ayasy4kdyekbywr7pyggpmjazeogxoyaodsyd.onion

osirislivpetlbabbl3zzqhupurfkxxbzbheu3bkrshkaiwg2hcxbyqd.onion

osirisydmlx47esm6ylhzhtnjrucgnymi7beqoyzze5jn3opbr3zy4id.onion

Printed as supplied, in no order. Nothing here is watched or timed, so an address that loads is not proof of anything. More about the set

1.What is in there at this moment

Copy an address, copy a password, copy a phrase out of a key file, and each one lands in a single shared slot on the machine. It is not a feature of the page you copied from. It belongs to the operating system and is offered to everything running on it.

That sharing is why the clipboard is useful and why it is a problem. Paste works across applications because the slot is common ground.

Window opens: The moment you press copy.
Window closes: When something else takes the slot, or the machine shuts down.
What closes it: The next copy. Not time, and not closing the page.
Still possible after: Changing whatever the copied string protected.

2.What can read it

Any other application running as you, without asking and without leaving a mark.
On some setups a page in another tab, particularly if you paste into it and it keeps what it received.
A clipboard manager, which is worse than a reader because it keeps a list rather than a glance.
Anybody who sits down at the machine and presses paste into an empty box.

The last one is not a technical attack and it is the one that actually happens. Pasting into a blank field is a habit, and it costs nothing to try.

Read nextA wrong address pasted but not sentWhat happens when the slot changed between copy and paste.

3.How to empty it

Copy something harmless. A single letter from any text will do.
If a clipboard manager is running, clear its history, because it kept the old value even though the slot has moved on.
Paste once into a scratch box to confirm what comes back is the harmless thing.

Three steps, about eight seconds, and the second is where people stop early. The manager is the part that turns a moment into a record.

4.Why it does not clear itself

No rule anywhere empties the slot after a period of quiet. Some phones do something like it for some kinds of content, and some managers can expire entries. Neither is a default worth counting on. Assume what you copied this morning is still there unless you replaced it.

So this is one of the few entries in this section where the gap can quietly run for hours. Closing it takes one keystroke. It just will not close on its own.

Read this twiceA copied recovery phrase is where this stops being small. If a phrase has been in the slot, treat it as read and go to the entry on a phrase given away, because that one has no window at all.

5.Where the picture is wrong

People think the clipboard clears itself. It does not. It waits for the next copy, and that is the only thing it waits for.
People think it belongs to the window they copied from. It belongs to the machine, and everything on the machine can ask it for the contents.

Both come from treating copy and paste as one action rather than two. Copy puts a thing somewhere public. Paste takes it out. In between it sits in the open, like an address typed into a message.

Also usefulAn address saved and forgottenThe same string once it stops being temporary.

6.After the slot has moved on

You cannot know whether anything read it, because reading leaves nothing behind. So work from what was in there. A password means change the password. A payment destination means treat the next transaction as suspect. A phrase means the account is not yours any more. The window index sorts the rest of it the same way.

One slot, shared by everything on the machine.

The clipboard is common ground by design. That is why paste works between unrelated applications, and the same property makes leaving something in it a decision rather than an accident.

Questions people send in

Does closing the browser empty it?

No. The slot belongs to the operating system and outlives any application, including the one you copied from.

Are clipboard managers a bad idea?

They are a trade. They are useful and they turn a single value into a searchable history. Clearing the slot is not clearing the manager.

Is a phone different from a desktop?

Somewhat. Some phones limit which applications can read the slot in the background. The habit is the same on both.