This is a reasonable way to do it HOWEVER this only protects you against data loss in case of a lost USB stick. If attackers get access to the stick and place it back into your possession afterwards, they can manipulate the portable veracryp so you will run their malware to decrypt the data. The malicious veracryp could then either save the password you entered (hidden somewhere on the USB for the attacker after they steal the stick again) or just upload the whole decrypted data to an attacker server.
If you use the portable veracryp you need to make sure it has not been tampered with.
Well actually decrypting the data on any device you do not trust is risky for the same reason. If veracryp is installed on a machine you still have to trust the person that owns that machine to not have manipulated it or to not have been a victim of malware themselves.
TL:DR decrypting the data on any device you don’t control yourself is risky and optimally you could install veracrypt on any device you control.










Why does OP have a stick with encrypted data if they do not care about its security?
Yes, maybe its just the porn collection that they don’t want others to see, but maybe its actually important stuff.
I think it is important to inform people about the ways their security can be circumvented and if somebody gives security advice its important to inform people if that advice contains flaws.
OP should know about the potential risks and then decide themselves if that is acceptable to them.
And when talking about encryption, people often forget, that the best way to break it is to never attack the encryption, but attack the way people interact with the unencrypted data.
OP should know about the dangers of decrypting their USB with software that could be manipulated.
Is all that overkill in 95% of cases? Probably? Do we know OP isn’t in the 5% where it matters? No.
Maybe they want to hide something from someone in their household who has frequent access to the USB stick. Maybe they are a journalist that might get searched by police/airport security … we do not know and we shouldn’t make assumptions about their threat model.
That’s why I started the comment with “reasonable approach”