Group 1: Core Characteristics of Cryptocurrencies - Cryptocurrencies are characterized by decentralization and anonymity, with no single entity controlling the network and transactions being conducted without revealing personal identities [2] - The security of cryptocurrencies relies on cryptographic technology, specifically the "public-private key pair" system, where the public key serves as a receiving address and the private key is the unique proof of asset ownership [2] - Blockchain technology acts as the underlying ledger for cryptocurrencies, utilizing distributed storage to ensure transaction information is recorded across numerous global nodes, making it both transparent and immutable [2] Group 2: Types of Cryptocurrencies - Native cryptocurrencies, such as Bitcoin and Ethereum, have no specific issuer and their supply is typically predetermined by algorithms, serving as value carriers or transaction fee payments within their respective networks [3] - Stablecoins are pegged to fiat currencies or physical assets, exhibiting minimal price volatility, and are used to mitigate risks associated with the fluctuating cryptocurrency market [3] - Platform tokens are issued by specific blockchain platforms for functional use or governance voting, allowing holders to pay service fees or participate in platform upgrades [3] - Application tokens are designed for specific use cases, with their value dependent on the success and user adoption of the corresponding applications [3] Group 3: Key Risks Associated with Cryptocurrencies - Regulatory risks arise from varying attitudes towards cryptocurrencies across countries, with some nations outright banning their circulation, which can directly impact their legality [2] - Price volatility is a significant concern, with daily fluctuations exceeding 20% being common, influenced by market sentiment and policy changes [4] - Technical risks include vulnerabilities in blockchain technology, such as smart contract flaws and potential hacking incidents, which can lead to asset losses [4]