Hugo Drayton, chief executive officer of the UK region for Phorm, a controversial behavioral targeting-based advertising system aimed at the telecoms, has left the company. Lynne Millar, Phorm’s chief financial officer, has also resigned. Earlier this month some, company executives and board members left Phorm after disagreeing with CEO Kent Ertugrul. Phorm had been in trials with British Telecom (s bt) that concluded earlier this month. Phorm continues to move forward, and BT is likely to roll out the ad system on its retail broadband network. Phorm competitor NebuAd has retreated into a shell after coming under scrutiny from legislators over privacy fears.