Your employer is watching you! Based on this motto and given the increasing use of new technologies by employers, the Article 29 Working Party (the representative body for data protection authorities in the EU) recently released an opinion (2/2017) on data processing at work. In addition to comments on the data protection principles applicable to processing in the employment context, including on the basis of the General Data Protection Regulation (GDPR), the opinion provides feedback on a number of concrete examples, such as the use of social media in the recruitment process and vehicle tracking systems. It also provides useful recommendations to help employers ensure compliance with privacy laws when engaging in data processing.