Explanation:

• The virtual 4th Global Conference on Criminal Finances and Cryptocurrencies co-organised by the Basel Institute on Governance, Interpol and Europol, the conference gathers cryptocurrency experts, money laundering investigators and other law enforcement representatives from around the world was held from November 18 to 19.
• The conference is an initiative of the Working Group on Cryptocurrencies and Money Laundering established in 2016 by the three organisations, launched with an objective of strengthening knowledge, expertise and best practices for investigations into financial crimes and intelligence on virtual assets and cryptocurrencies.
• Over 2,000 representatives from 132 countries attended the virtual 4th Global Conference.

Hence option 1st is correct.