Why Wallet transactions cannot be tracked?

[phdilanuom]

I recently heard that virus program distributed among the android users and they encrypt their data and ask money(Through a wallet address) for recover them,, the thing is transaction cannot be tracked? why?

[cissrawk]

I recently heard that virus program distributed among the android users and they encrypt their data and ask money(Through a wallet address) for recover them

Do you mean ransomware? But i never see it on android before.

the thing is transaction cannot be tracked? why?

Well, for me is possible to track it but its really hard, especially if the hacker(people who ask money) using mixer before send it to exchange. If the hacker send it directly to exchange address without using mixer, then it probably still have a chance to track it, cmiiw.

[Wahyud11]

All Bitcoin transactions are public, traceable, and permanently stored in the Bitcoin network. The Bitcoin address is the only information used to determine where bitcoins are stored and where they are sent. This address is personally created by each user's wallet. However, once the address is used, they become tainted by the history of all their transactions. Anyone can see the balance and all transaction addresses anywhere