Although the Service Node network has no central points of failure, there are two significant censorship threats to the network, being harvesting attacks and deep packet inspection 

IP and Packet Blocking

Users of decentralised blockchains are not required to provide digital or physical identifiers which helps users who lack identity or are being persecuted because of it but create vulnerability to Sybil attacks where a malicious actor produces numerous false identities and uses these identities to spam the network with requests. 

Denial of Service Attacks

When nodes operate in a trustless environment without a centralised leader enforcing rules, maintaining proper node behavior on the network becomes difficult. Although Service Nodes in Loki must hold the correct collateral requirement, they may choose to not route traffic or store data in their memory pools. Because this option is financially beneficial, a system of distributed flagging needs to be proposed to remove underperforming nodes. 

Swarm Flagging

- IP and Packet Blocking
- Denial of Service Attacks
- Swarm Flagging

University of Connecticut

Loki is a cryptocurrency based off of Monero, but has improved itself to be much more secure and efficient. By using service nodes, a node reward scheme, Loki can provide economics incentives for node operators. 

Loki Cryptocurrency

https://loki.network/wp-content/uploads/2018/10/LokiWhitepaperV3_1.pdf

Loki Whitepaper

Service Nodes allow users to transmit and receive data packets anonymously. Loki Messenger is another such privacy function, allowing for decentralized and end to end encrypted messaging without the reliance of a third party messenger.

Privacy and Security in Loki

Loki Elements

Onion routing protocols allow for users to form tunnels or paths through a distributed network, using multiple nodes as hops to obfuscate the destination and origin of data packets. Service Nodes on the Loki network operate a low latency onion routing protocol to form  a fully decentralized overlay network, called Lokinet. The network does not rely on trusted authorities and its state is fully derived from the blockchain 

LokiNet

Each Service Node operator freezes Loki coins when they begin to operate a Service Node. This serves two purposes, which is used to enforce aggressive punishment for poorly behaving nodes. This forces groups of service nodes to come to a consensus on the status of the blockchain.

LokiNet Services

The risk of informally defined governance has been studied extensively throughout the history of blockchain technology. Bitcoin and Ethereum experienced hard forks that split the focus and efforts of their respective communities. Although hard forks can be used as a governance strategy, they should always be considered as a last resort. The Loki governance system is created to resolve potential issues by providing a structured environment for discourse and representation, as well as creating and generating funds for new projects. 

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