steam asking for confirmation for market transactions

[duke]

hey so I bought an item off of the market and it said I had to confirm it on the app, this is new to me so I was wondering when it was added

[CASINO IN BIO]

That’s Steam Guard Mobile Authenticator — Valve made it mandatory back in late 2015–2016 to cut down on scams and hijacked accounts. Any listing you create or item you buy/sell through the Market usually requires confirmation in the Steam Mobile app if you don’t want the 15-day trade/market hold. It’s been standard for years now, so you’ll need the Steam Mobile app linked to your account if you plan to keep using the Market actively.