Selected CCAS AML Certifications Questions Answers

Private blockchains are controlled by a single organization with full access restrictions. This model is often used for internal record-keeping but lacks the decentralized trust of public chains.

Hash immutability means that altering any transaction would require changing all subsequent blocks and achieving majority consensus. This security property underpins blockchain integrity and forensic traceability, crucial in AML investigations.

Anonymity-enhanced cryptoassets employ specific technical features to obfuscate the details of transactions and the identities of users to reduce traceability and increase privacy. These include:

Automatic mixing (B):This refers to mechanisms such as coin mixers or tumblers that combine multiple transactions from different users into one batch and redistribute them, breaking the direct transaction link and obscuring the audit trail.

Cryptographic enhancements (D):Techniques such as zero-knowledge proofs, ring signatures, stealth addresses, and confidential transactions are cryptographic protocols that conceal sender, receiver, and transaction amount information, making the blockchain ledger less transparent.

Other options explained:

Proof-of-stake mining (A)is a consensus mechanism and not related to anonymity features.

Secure hashing algorithm 256 (C)is a cryptographic hash function standard but does not directly enhance anonymity.

MetaMask wallet (E)is a non-custodial wallet used mainly for Ethereum and tokens but is not an anonymity tool.

References from official crypto AML guidance and typology papers:

DFSA AML Module and thematic reviews highlight these anonymity techniques as high-risk indicators requiring enhanced due diligence (EDD).

UAE typology papers and FATF virtual asset guidance emphasize the risk posed by anonymity-enhanced cryptoassets using automatic mixing and cryptographic enhancements to circumvent AML controls【AML/VER25/05-24: Sections 6.4, 7.3; 31.92._TFS_Typology_Paper_Eng__4.pdf】.

The Financial Action Task Force (FATF) guidance on Virtual Assets and Virtual Asset Service Providers (VASPs) explicitly highlights that transactions involving unhosted wallets (wallets not held or controlled by a regulated entity) pose a high inherent risk for money laundering and terrorist financing. This is because unhosted wallets are more difficult to monitor and control, lack identifiable customer information, and are often exploited for illicit activities.

The DFSA AML Module, aligned with FATF recommendations, mandates that Relevant Persons incorporate this risk into their business-wide risk assessments. The increased volume of transactions to and from unhosted wallets should therefore be assigned ahigh inherent risk ratingto trigger enhanced controls such as enhanced due diligence (EDD) and transaction monitoring.

Supporting extracts include:

FATF Guidance on Virtual Assets (October 2021) states: "Unhosted wallets or transactions with them represent a high risk of ML/TF due to limited or no access to identifying information."

DFSA AML Module (AML/VER25/05-24) Section 4.1 & 6.1 on Risk-Based Approach: mandates firms to assess and rate risks posed by customers and products, explicitly including virtual assets and unhosted wallets as high risk.

COB Module also requires heightened controls and disclosures when dealing with transactions involving unhosted wallets【AML/VER25/05-24: Sections 4.1, 6.1, COB/VER45/05-24: Sections 6.13, 15.6】.

Thus, optionD (High)is the correct risk rating.