expand_less The literature review found evidence that fraudulent recruitment ads on social media platforms were used to traffic victims for labour exploitation, and that social media platforms may profit from such advertisements. Research suggests that it is challenging to identify trafficking-related advertisements online and that the utility of indicators of labour trafficking in assessing job assessments at scale is likely to be modest. However, there are several indicators social media platforms can monitor for that may indicate risk. According to a 2018 Anti-Slavery International report, red flags may include promise of unrealistically high pay; administrative fees; finders’ fees; only general description of the job; no address for the recruitment agency; contact details containing only a mobile number or general email address; a job offered at a company in a specific location, with no evidence of the company at that location; or no record of official registration for recruitment agencies advertising jobs abroad. User-generated content can also be monitored for illegal activity, for example, following a 2019 BBC investigation, Facebook banned the Arabic hashtag "خادمات للتنازل#" (#maidsfortransfer), which had been used to facilitate trafficking of domestic workers in the Middle East. According to the Facebook Files, Facebook’s human exploitation investigators gathered evidence of human trafficking across Facebook products and found criminal networks recruiting people from poor countries, coordinating their travel, and placing them into domestic servitude or forced sex work in the Gulf. The Facebook Files also revealed that in 2020, Facebook employees and contractors spent more than 3.2 million hours searching and labelling or, in some cases, taking down information the company concluded was false or misleading, but only 13% of those hours were spent working on content from outside the US. Authorities have also uncovered evidence of a baby-selling syndicate on Instagram in Malaysia for example, and the use of social media to recruit teenagers for fraud and theft in the UK. Companies must regularly examine risks of different types of recruitment and exploitation in local languages and contexts and allocate sufficient resources to mitigate this risk.