Eclipse Attack
Update shuda Aug 18, 2026 Eclipse Attack network ke level ka attack hai jis mein ek badniyat attacker kisi ek blockchain
node ke tamam connections ko control kar ke usay alag kar deta hai. Poore network ko target karne ke bajaye, attacker ek victim node ko charon taraf se gher leta hai aur
peer-to-peer (P2P) network par mojood shirkat karne wale honest afraad se door kar deta hai.
Jab kisi node ko eclipse kar diya jata hai, to woh sirf wohi maloomat dekhta hai jo attacker usay dikhana chahta hai. Victim ko lagta hai keh woh asal network se jura hua hai, lekin transactions aur blocks samait
blockchain ke baray mein us ka poora nazariya attacker ke zariye filter kiya ja sakta hai ya jaali banaya ja sakta hai.
Blockchain nodes har ek node se connect nahi hote. Is ke bajaye, har node nayi transactions aur blocks ko aage pohanchane wale kuch hi peers ke sath mehdood connections barqaraar rakhta hai. Eclipse attack isi mehdood connectivity ka faida uthata hai.
Attacker aam tor par mukhtalif IP addresses par bohat se nodes deploy karta hai aur phir victim ke tamam dastiyab connection slots par qabza karne ki koshish karta hai. Is mein target ko connection ki bohat ziada darkhwastein bhejna ya node ke restart hone ka intezar karna shamil ho sakta hai, jis ke baad woh node dobara attacker ke control shuda peers se connect ho sakta hai. Agar yeh koshish kamyab ho jaye, to victim node ke har andar aane wale aur bahar jane wale connection ka rasta attacker se ho kar guzarta hai.
Jab node gher liya jata hai, to attacker naye blocks ko muakhar kar sakta hai ya chupa sakta hai, transactions ko rok sakta hai, ya blockchain ka ek mutabadil version dikha sakta hai. Bahar se dekhne par sab kuch thek nazar aata hai, aur isi wajah se is attack ka pata lagana mushkil hota hai.
Eclipse attack ka bunyadi maqsad aksar
double-spending ko mumkin banana hota hai. Misal ke tor par, attacker kisi eclipsed merchant node ko adaegi kar sakta hai, is alag kiye gaye node se is ki tasdeeq karwa sakta hai, aur saman ya services hasil kar sakta hai, jab keh woh transaction kabhi asal network tak pohanchi hi nahi hoti. Phir attacker wahi funds dobara kisi aur jagah kharch kar sakta hai.
Eclipse attacks poore network ki security ko bhi kamzor kar sakte hain. Kai nodes ko alag karte huye un mein hum ahangi paida kar keh, attacker mining se mutaliq attacks mein faida hasil kar sakta hai ya
51% attack ke asar ko barha sakta hai. Bohat se blockchain clients is khatre ko kam karne ke liye aise iqdamat karte hain jaisa keh peer connections ki tadaad barhana, peers ka intikhab bay-tarteeb rakhna, aur qabil-e-aitmaad peers ke liye kuch connection slots mehfooz rakhna.