Any suspicious approaches or information should be reported immediately. This is a positive obligation, and can be reported directly to the PCA or a colleague who is close to the player.
Players can inadvertently put themselves in position to be exploited by individuals who build relationships out of any weakness, from fears and favours to their financial situation.
Spot and match fixing is a very real threat to the integrity of cricket. Televised matches are extremely attractive to match fixers and other corrupt gamblers. Your participation in top level cricket puts you at the forefront of this risk.
The above anti-corruption tutorial is mandatory for any player registered to one of the first-class counties.