90% of all online harassers are never held accountable. The main reason is a grey area in consent that enables harassers and their lawyers to distort words like 'no', 'stop' or 'don't' into meaning things such as 'maybe' or 'possibly', and ultimately questioning the credibility of victims. 

Whereas words are vulnerable to reinterpretation, conventional symbols (like traffic signs) are unambiguous and immutable by law. For example: one cannot appeal that a STOP sign means something different. 

So, Grey Colombia created the first universal symbol against harassment using an emoji (NO) that already exists on all phone keyboards by default. The symbol has been promoted by top influencers from the gender equality movement and adopted by victims nationwide, turning it into a social convention so it can be used as legal proof that victims expressed absolute refusal to undesired sexual proposals, protecting their credibility.