Jinsi ya Kuondoa Ruhusa za Mikataba Mahiri (Kaa Salama)
Linda crypto yako kwa kuondoa idhini hatari za tokeni. Usalama muhimu kwa kila mtumiaji wa DeFi.
Kwa Nini Hii Ina Umuhimu
Zaidi ya dola bilioni 2 zimeibwa kupitia idhini za tokeni zilizotumika vibaya. Ikiwa umewahi kutumia DEX, daraja, au itifaki ya DeFi, labda una idhini hai ambazo zinaweza kuweka fedha zako hatarini.
Msimbo wa Rufaa
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Ruhusa za Tokeni ni Nini?
Unaposhirikiana na itifaki za DeFi, lazima uwape ruhusa ya kusogeza tokeni zako. Ruhusa hii inaitwa ruhusa au idhini.
Inavyofanya Kazi
- 1Unataka kubadilisha USDC kwa ETH kwenye Uniswap
- 2Uniswap inaomba idhini ya kufikia USDC yako
- 3Unasaini muamala wa idhini
- 4Uniswap sasa inaweza kusogeza USDC yako kwa ubadilishaji
Tatizo
Itifaki nyingi zinaomba idhini ZISIZO NA KIKOMO kwa urahisi. Hii inamaanisha:
- Mkataba unaweza kumwaga tokeni zako ZOTE
- Idhini inaendelea milele hadi iondolewe
- Ikivunjwa, washambuliaji hupata ufikiaji kamili
- Watumiaji wengi wanasahau kuhusu idhini za zamani
Kwa Nini Ruhusa Zisizo na Kikomo ni Hatari
Si idhini zote zinabeba hatari sawa. Hapa kuna jinsi ya kutathmini mfiduo wako.
Unlimited Approval
Contract can spend infinite tokens
Large Amount Approval
High value approval to less-known contracts
Old Unused Approval
Approval to contracts you no longer use
Trusted Protocol Approval
Limited approval to verified protocols
Jinsi ya Kuangalia Ruhusa Zako
Tumia zana hizi za kuaminika kuona na kusimamia idhini zako za tokeni.
Revoke.cash
100+ chains
- Free to use
- Multi-chain support
- Batch revocations
- Browser extension
Etherscan Token Approval
Ethereum + L2s chains
- Official tool
- Detailed history
- ERC-20/721/1155
- Transaction details
Mwongozo wa Kuondoa Hatua kwa Hatua
Chagua zana unayopendelea na fuata hatua za kuondoa idhini hatari.
Tembelea Revoke.cash
Nenda kwenye tovuti rasmi
- Navigate to revoke.cash in your browser
- Ensure you are on the official site (check URL)
- The site works without connecting wallet initially
Unganisha Pochi Yako
Unganisha MetaMask au pochi nyingine
- Click "Connect Wallet" button
- Select your wallet provider (MetaMask, WalletConnect, etc.)
- Approve the connection request
Chagua Mtandao
Chagua blockchain ya kuangalia
- Click the network selector dropdown
- Choose Ethereum, Polygon, Arbitrum, or other chain
- Repeat for each network you have used
Kagua Ruhusa
Angalia idhini zote zinazotumika
- Wait for the page to load all approvals
- Sort by value at risk or date
- Identify unlimited or suspicious approvals
Ondoa Idhini Zisizohitajika
Ondoa ruhusa zenye hatari
- Click "Revoke" next to each unwanted approval
- Confirm the transaction in your wallet
- Pay the gas fee to complete revocation
Thibitisha Kuondolewa
Hakikisha idhini imeondolewa
- Wait for transaction confirmation
- Refresh the page to verify removal
- The approval should no longer appear in the list
Gharama za Gesi Zilizofafanuliwa
Kuondoa idhini kunagharumu gesi. Hapa kuna gharama zilizokadiriwa kwa kila mtandao.
Ethereum
$2-15
1-5 min
Polygon
$0.01-0.05
< 30 sec
Arbitrum
$0.10-0.50
< 1 min
Optimism
$0.05-0.30
< 1 min
BSC
$0.05-0.20
< 30 sec
Base
$0.01-0.10
< 1 min
Kidokezo cha Kitaalamu: Okoa Gesi
Ondoa idhini wakati wa wikendi au asubuhi mapema UTC wakati bei za gesi kwa kawaida ni 30-50% chini. Tumia vifuatiliaji vya gesi kama Etherscan Gas Tracker kupata nyakati bora.
Wakati wa Kuondoa Ruhusa
Jua wakati wa kuchukua hatua ili kulinda mali zako.
After using a new DeFi protocol
New protocols carry higher risk of exploits
When you stop using a protocol
No need to maintain exposure to unused contracts
After interacting with NFT mints
NFT contracts often request broad approvals
Monthly security audit
Regular maintenance prevents forgotten risks
After news of protocol hack
Immediate action needed if you used the protocol
Before large token transfers
Clean slate before moving significant funds
Mazoea Bora ya Idhini za Tokeni
Fuata miongozo hii ili kupunguza mfiduo wako wa hatari.
Tumia Kiasi Halisi
Ruhusu tu kiasi halisi kinachohitajika kwa muamala, si bila kikomo.
Angalia Kabla ya Kusaini
Daima soma maombi ya idhini kwa makini. Tumia pochi kama Rabby zinazonyesha onyo za hatari.
Ukaguzi wa Mara kwa Mara
Angalia idhini zako kila mwezi. Weka kikumbusho cha kalenda kwa ukaguzi wa mara kwa mara.
Tumia Pochi Tofauti
Weka mali kuu katika pochi baridi. Tumia pochi moto kwa DeFi na fedha ndogo.
Thibitisha Mikataba
Shirikiana tu na mikataba iliyothibitishwa. Angalia ikiwa mkataba umekaguliwa.
Ondoa Baada ya Matumizi
Ondoa idhini mara moja baada ya kumaliza na itifaki, hasa mpya.
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Maswali ya kawaida kuhusu ruhusa za tokeni na kuondolewa.
Msimbo wa Rufaa
TRADEOFF20
Punguzo la 20% la maisha yote kwenye ada zote za biashara