How do I know the real scammer and non-scammer?

S̶e̶e̶i̶n̶g̶ ̶s̶e̶c̶r̶e̶t̶ ̶m̶e̶s̶s̶a̶g̶e̶s̶ ̶f̶r̶o̶m̶ ̶s̶o̶m̶e̶o̶n̶e̶ ̶d̶e̶v̶i̶c̶e̶ ̶i̶s̶ ̶s̶p̶y̶i̶n̶g̶ ̶a̶n̶d̶ ̶m̶o̶n̶i̶t̶o̶r̶i̶n̶g̶ ̶a̶ ̶d̶e̶v̶i̶c̶e̶ ̶r̶e̶m̶o̶t̶e̶l̶y̶.̶ ̶i̶t̶ ̶w̶i̶l̶l̶ ̶r̶e̶q̶u̶i̶r̶e̶ ̶t̶h̶e̶ ̶h̶e̶l̶p̶ ̶o̶f̶ ̶a̶n̶ ̶o̶n̶l̶i̶n̶e̶ ̶c̶e̶r̶t̶i̶f̶i̶e̶d̶ ̶h̶a̶c̶k̶e̶r̶ ̶t̶h̶a̶t̶ ̶w̶i̶l̶l̶ ̶g̶r̶a̶n̶t̶ ̶a̶c̶c̶e̶s̶s̶.̶ ̶U̶s̶e̶ ̶t̶h̶e̶ ̶s̶e̶r̶v̶i̶c̶e̶ ̶b̶e̶l̶o̶w̶ ̶f̶o̶r̶ ̶y̶o̶u̶r̶ ̶h̶a̶c̶k̶i̶n̶g̶ ̶r̶e̶l̶a̶t̶e̶d̶ ̶i̶s̶s̶u̶e̶s̶

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̶H̶a̶c̶k̶p̶r̶o̶s̶p̶y̶@̶g̶m̶a̶i̶l̶.̶c̶o̶m̶