The Downtown Line (DTL) is a medium-capacity Mass Rapid Transit (MRT) line in Singapore operated by the SBS Transit company. It runs from Bukit Panjang station in the north-west to Expo station in the east via the Central Area. Colored blue on the rail map, the line serves 34 stations, all of which are underground. […]
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Ongoing news reports in the international media have revealed operational details about the Anglophone cryptographic agencies’ global surveillance of both foreign and domestic nationals. The reports mostly emanate from a cache of top secret documents leaked by ex-NSA contractor Edward Snowden, which he obtained whilst working for Booz Allen Hamilton, one of the largest contractors
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Netcat (often abbreviated to nc) is a computer networking utility for reading from and writing to network connections using TCP or UDP. Netcat is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool,
Decentralized Finance (DeFi) refers to a financial ecosystem built on public blockchain networks that enables lending, borrowing, trading, derivatives, and other financial services without traditional centralized intermediaries such as banks or brokerages. Instead of institutions, DeFi relies on smart contracts—self-executing programs deployed on blockchains. Most DeFi activity occurs on the Ethereum network, though other blockchains
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Multi-access Edge Computing (MEC) – formerly known as mobile edge computing – is a type of edge computing that extends the capabilities of cloud computing by bringing it to the edge of the network. MEC was borne out of the ETSI (European Telecommunications Standards Institute) initiative that originally focused on placing edge nodes on the
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A 51% attack is a situation in a blockchain network where a single entity or group of miners controls more than 50% of the network’s mining hash rate or staking power, allowing them to manipulate the blockchain in ways that undermine its security, trustworthiness, and consensus mechanisms. 🔑 Mechanism Control over the Network When an
Aave is an Ethereum-based decentralized lending and borrowing network. Aave customers may obtain loans by pledging crypto holdings as collateral. Lenders that give collateral to Aave are rewarded with aTokens, which automatically pay interest to the bearer using platform trading fees. Aave invented ‘flash loans,’ which allow for the uncollateralized lending of cash as long
A low-power wide-area network (LPWAN) or low-power wide-area (LPWA) network or low-power network (LPN) is a type of wireless telecommunication wide area network designed to allow long-range communications at a low bit rate among things (connected objects), such as sensors operated on a battery. The low power, low bit rate and intended use distinguish this type of network from a wireless WAN that is designed to connect users or businesses, and carry
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Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points that do not use an electrical conductor as a medium by which to perform the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth or as far as millions of
The Bitcoin network is a decentralized, peer-to-peer system that enables the creation, transfer, and verification of Bitcoin without a central authority. Launched in 2009 following the principles outlined in the white paper by Satoshi Nakamoto, the network relies on cryptography, consensus protocols, and a distributed ledger to secure transactions and manage the issuance of new