E.g., Germany: StGB 201 § 201 Verletzung der Vertraulichkeit des Wortes https://www.gesetze-im-internet.de/stgb/__201.html
In some places, secret recordings are useless as evidence (e.g., two-party consent states in the United States), while in others even illegal recordings may be admissible anyway (e.g., Sweden).
For example, in Germany, a lot of the privacy culture (and therefore, laws) came about because of how the secret police terrorised the common people, for example, using secret recordings and worse (e.g., secret evidence).
But in other places, sure, I would agree with you.
EDIT: I know there are places where secret recordings are illegal but don't know the expected penalties. Recordings are probably legal in a "one-party consent" state. Be wary; certain kinds of recording may be illegal even if recording is legal in general.
In a lawsuit, you will be required to hand over all relevant records. It is illegal to destroy them or fail to hand them over. The penalties for doing so could be severe.
But even if you get away with it, hiding evidence would be wrong. Don't respond to sleaze with yet more sleaze. Maybe you'll win the fight or maybe you'll lose it, but you will always lose something of yourself.
Is it wrong, or just illegal some places?
Is it only "sleaze" where it's illegal, or everywhere?
https://www.gesetze-im-internet.de/englisch_stgb/englisch_st...
These companies know that worker bee call center drones say things all the time that the company doesn't want preserved in a court of law later- mainly promises that the company doesn't want to have to uphold if they were outside policy. They take it very seriously. I suspect any major company with something to lose has a similar policy.
In the US it's either one party (the majority of states) or all party.
What I do is I inform and get consent from hotline agents during the call.
If a business states that the call may be recorded, then they are already consenting. Therefore your recording would be the 2nd party consenting.
"Determining which jurisdiction’s law controls in cases involving recording devices or parties in multiple states can be complex, so it is likely best to adhere to the strictest applicable law when in doubt, and/or get the clear consent of all parties before recording."
So it doesn't seem to be simple to determine what's legal in any given situation.