Try not to wear too much of jewelry (and it will be better not to wear at all) otherwise do not reveal them. Even the tiniest, thiniest one can attract the theft there.
Secondly wil be to be extremely careful while handling money. Similarly to the jewelry, they can grab anyone including pregnant lady.
I, myself, have caught a snatch thief in Klang before.
You might have heard recently how many lives have been claimed because these petty thieves are getting more violent by the day.
In Klang, the people take law in their own hand- we beat them up.
As for my case, I didn't participate in the lynching of the guy - I saw the crowd nearby kick and punch till he bleed. The guy was so scared that he *** in his pants.
So and advise is if you decide to steal, make you you don't get caught.