Our struggle is … against the spiritual forces of evil in the heavenly realms”. 

Eph 6:12, 13 NIV 
The world is full of evil. Do not underestimate the malicious intent of the evil powers that are at work. Drug trafficking rings that seek to bring young people to total slavery through their addiction, child porn websites on the internet, “chop shop” syndicates that trade in stolen vehicles, the illicit smuggling of diamonds to fund wars, money-laundering of the proceeds of crime – all of these and many more are evil forces that operate powerfully in many parts of the world. 
“Power itself is neutral; it can be well used or misused. But our spiritual enemies use their power destructively rather than constructively, for evil not for good. They are the worldwide rulers of this present darkness. They hate the light, and shrink from it. Darkness is their natural habitat, the darkness of falsehood and sin. They are also described as the spiritual forces of evil which operate in the heavenly realms, that is, in the sphere of invisible reality. They are ‘spiritual agents from the very headquarters of evil’. So then ‘darkness’ and ‘wickedness’ characterize their actions, and ‘the appearance of Christ on earth was the signal for an unprecedented outburst of activity on the part of the realm of darkness controlled by these world-rulers’. If we hope to overcome them, we shall need to bear in mind that they have no moral principles, no code of honour and no higher feelings. They recognize no Geneva Convention to restrict or partially civilize the weapons of their warfare. They are utterly unscrupulous, and ruthless in the pursuit of their malicious designs” (J. Stott, The Message of Ephesians, p264). 
You have been warned! 

PRAYER THOUGHT Lord, help me to discern the diabolical nature of the evil forces.