is there a way to completely block any transaction from my account?

[Sehkh]

i was recently "robbed" by a market transaction that i did not do and steam support has literally no tools to help me, short of getting a community ban is there a way to lock out my steam wallet?

[Ettanin]

You exposed your login credentials:
a) Either by logging into a site that faked a Steam login and made a bot log into your account using the save password as well as the trust device feature while injecting a Steam API access into it.
b) Or by installing malware that stole your session data or injected a keylogger.

For that reason, trading using third party sites is considered a huge security risk.

1. Scan for malware https://www.malwarebytes.com/
2. Check that the email and phone number on the Steam account are still yours.
3. Deauthorize all other devices https://store.steampowered.com/twofactor/manage
4. Change passwords from a clean computer
5. Generate new backup codes for your Mobile App https://store.steampowered.com/twofactor/manage
6. Revoke the API key https://steamcommunity.com/dev/apikey (there should be nothing in the APIKEY)
7. Change your trade link: Profile > your inventory > trade offer > Who can send me trade offer > scroll down and make a new trade link.

Be aware that Steam Support will not restore stolen items nor stolen wallet funds.
In accordance with Section 1 C of the Steam Subscriber Agreement, you are responsible for all actions on your account, no matter who used the account.

[nullable]

Originally posted by Sehkh:

is there a way to completely block any transaction from my account?

Properly securing your account and keeping it secure has worked pretty well for me for twenty years. Although some of that means learning a bit about security, and what matters and what works, and not just inventing your own processes and standards that aren't as good as you think they are.

The problem with your question is for you to disable/block/prevent all transactions is that you have to have access to your account to do that. If someone else has access to your account they may be able to disable it. The integrity of that feature still requires your account to be secure at all times, and if it is, you don't really need that feature. That's the conundrum with these sort of ad hoc solutions people invent to try to protect themselves without resolving the root problem in their own security practices.

[Sehkh]

Originally posted by nullable:

If someone else has access to your account they may be able to disable it.

for the longest time i always thought that steamguard did something to secure steam accounts but it clearly doesnt, funny how to sell something on the market it needs to confirm on the phone but not for buying, rendering it useless unless you avoid at all costs having any amount of money laying in steam wallet witch seems to be my only option in my case.

[A no-brainer]

You could add another layer of security by activating Family View. Of course this will not help if you give away the pin as you gave away your login data before, but as long as the pin is only known by you all community features are locked which includes the Steam market.

Deleting credit card information /other payment information protects too and on top hinders spontaneous purchases from yourself.

Last: Store credit /wallet funds should be always as low as possible. Only sell something on the market if you plan on buying something with that money, only fill your walltet shortly before buying a game.

[Muppet among Puppets]

Originally posted by Sehkh:

Originally posted by nullable:

If someone else has access to your account they may be able to disable it.

for the longest time i always thought that steamguard did something to secure steam accounts but it clearly doesnt

2 factor things make things safer if you do the safe things.
Thats all they do.

[Supafly]

Originally posted by Sehkh:

Originally posted by nullable:

If someone else has access to your account they may be able to disable it.

for the longest time i always thought that steamguard did something to secure steam accounts but it clearly doesnt,

It works fine IF you keep the LIVE code that changes every 30 seconds secure. It is NOT a magical make your account immune to compromise, it is just 1 more key. If you give your username password and LIVE Steam Guard code to a stranger they have access. Just like if you give your address and house keys to a stranger they have access to your home. Your home insurance company or lock maker is NOT at fault if you get burgled because you did NOT keep it secure. Steam isn't at fault because YOU did NOT keep your login credentials secure.

Instead of blaming Steam you should be trying to figure out HOW someone got your username, password and LIVE Guard code. Then you can prevent it from happening in the future. Be grateful it was just your Steam account and not your bank account with your life savings

[Sehkh]

Originally posted by Supafly:

Instead of blaming Steam you should be trying to figure out HOW someone got your username, password and LIVE Guard code.

you are right though, even google and sony being the behemoths of a companies they are, arent secure and leeks happen frequently my bad for expecting too much from steam, guess i have to keep an eye when the leeks happen to change all my 100 passwords in time so noone gains access to my things

[Muppet among Puppets]

Originally posted by Sehkh:

Originally posted by Supafly:

Instead of blaming Steam you should be trying to figure out HOW someone got your username, password and LIVE Guard code.

you are right though, even google and sony being the behemoths of a companies they are, arent secure and leeks happen frequently my bad for expecting too much from steam, guess i have to keep an eye when the leeks happen to change all my 100 passwords in time so noone gains access to my things

Leaks is one of the few moments where 2fa helps.
You have 2fa if someone else messes up.
Not when you login the wrong page.

[Supafly]

Originally posted by Sehkh:

Originally posted by Supafly:

Instead of blaming Steam you should be trying to figure out HOW someone got your username, password and LIVE Guard code.

you are right though, even google and sony being the behemoths of a companies they are, arent secure and leeks happen frequently my bad for expecting too much from steam, guess i have to keep an eye when the leeks happen to change all my 100 passwords in time so noone gains access to my things

Why 100??? they should AQLL be secure. If 1 gets compromised you change that 1

There have been no new leaks that include Steam. Even if there were Steam Guard has you covered. Assuming you don't share your username, password and LIVE Guard code with someone else. Whether that be by using a phishing website without knowing or using a compromised system