Kev Sib Tw Ruaj Ntseg Hauv IoT Networks
Lub Internet ntawm Yam (IoT) tau hloov pauv txoj kev uas tib neeg sib cuam tshuam nrog thev naus laus zis. Cov khoom siv xws li lub teeb ntse, CCTV koob yees duab, cov sensors kev lag luam, cov ntsuas hluav taws xob ntse, cov khoom siv kho mob hnav tau, thiab txawm tias lub tshuab automation hauv Hoobkas txuas nrog internet los sau cov ntaub ntawv thiab ua haujlwm tau yooj yim. Txawm hais tias qhov yooj yim thiab kev ua haujlwm zoo uas IoT muab yog qhov loj heev, cov teeb meem kev ruaj ntseg tseem ceeb heev. IoT networks feem ntau yog cov hom phiaj yooj yim vim tias tus lej ntawm cov khoom siv yog loj heev, sib txawv, thiab ntau yam tau tsim nrog tus nqi qis hauv siab, tsis quav ntsej txog cov yam ntxwv kev ruaj ntseg. Tsab xov xwm no tham txog cov teeb meem kev ruaj ntseg tseem ceeb hauv IoT networks, lawv cov laj thawj, thiab lawv qhov cuam tshuam rau cov neeg siv thiab cov koom haum.
1. Qhov Chaw Tawm Tsam Loj Heev
Qhov teeb meem loj tshaj plaws nrog IoT yog nws qhov chaw tawm tsam loj heev. Tsis zoo li cov txheej txheem IT ib txwm muaj, uas tej zaum tsuas yog muaj cov servers, khoos phis tawj, thiab cov khoom siv network, IoT tuaj yeem suav nrog ntau txhiab mus rau ntau lab lub cuab yeej me me uas kis thoob plaws ntau qhov chaw. Txhua lub cuab yeej ua rau muaj peev xwm "nkag mus" rau cov neeg tawm tsam. Cov khoom siv txuas nrog ntau dua, nws nyuaj dua los saib xyuas lawv txhua tus tas li.
Piv txwv li, ib lub tuam txhab tsim khoom nruab ib lub sensor kub thiab kev co rau ntawm cov tshuab tsim khoom. Yog tias ib lub sensor muaj qhov tsis zoo ntawm kev ruaj ntseg thiab txuas nrog lub network sab hauv, tus neeg tawm tsam tuaj yeem siv nws los txav mus rau sab nraud mus rau cov kab ke tseem ceeb xws li cov servers tsim khoom lossis cov ntaub ntawv khaws cia.
2. Cov Kev Txwv ntawm Cov Khoom Siv
Muaj ntau yam khoom siv IoT uas muaj cov processor, memory, thiab fais fab. Cov kev txwv no ua rau kev siv cov txheej txheem kev ruaj ntseg niaj hnub nyuaj. Kev encryption muaj zog, kev lees paub ntau txheej, kev ruaj ntseg khau raj, lossis kev saib xyuas kev ncaj ncees feem ntau xav tau cov peev txheej suav uas tsis muaj rau ntawm cov khoom siv pheej yig.
Yog li ntawd, qee cov khoom siv siv cov txheej txheem sib txuas lus tsis muaj zog, khaws cov passwords tsis muaj kev nyab xeeb, lossis xa cov ntaub ntawv yam tsis muaj kev encryption. Txawm tias thaum cov neeg muag khoom siv zog los txhim kho kev nyab xeeb, cov khoom siv yuav tsis tuaj yeem khiav cov kev hloov kho kev nyab xeeb txaus.
3. Lo lus zais uas tsis siv lawm thiab kev lees paub tsis muaj zog
Ib qho teeb meem qub uas tseem tshwm sim ntau zaus: cov passwords uas lub Hoobkas teeb tsa tsis hloov pauv. Ntau lub koob yees duab IP, cov routers hauv tsev, thiab lwm yam khoom siv ntse xa nrog cov ntaub ntawv pov thawj xws li "admin/admin" lossis kev sib xyaw ua ke yooj yim. Cov neeg tawm tsam tuaj yeem ua qhov kev tshuaj xyuas loj thoob plaws hauv internet kom nrhiav tau cov khoom siv uas tseem siv cov ntaub ntawv pov thawj qub.
Tsis tas li ntawd xwb, qee lub cuab yeej tsis muab cov txheej txheem lees paub zoo, xws li tsis muaj kev txhawb nqa rau cov passwords nyuaj, kev txwv tus nqi, lossis kev lees paub raws li daim ntawv pov thawj. Qhov no qhib qhov ua tau ntawm kev tawm tsam brute-force thiab kev txeeb cov cuab yeej.
4. Kev Hloov Kho Firmware Tsawg Kawg Nkaus thiab Kev Faib Tawm ntawm Cov Muag Khoom
Lub neej ntawm cov khoom siv IoT feem ntau ntev, tab sis kev txhawb nqa hloov kho tshiab ntawm cov neeg muag khoom tsis tas li. Ntau lub cuab yeej tsis tau txais cov kho kom ruaj ntseg tsis tu ncua, lossis cov txheej txheem hloov kho tshiab nyuaj rau cov neeg siv. Ntxiv mus, IoT ecosystem muaj kev sib cais heev: ntau pua tus neeg muag khoom, ntau yam chipsets, ntau yam operating systems, thiab ntau yam protocols. Qhov kev sib cais no ua rau kev ruaj ntseg thiab kev tswj hwm hloov kho tshiab nyuaj.
Muaj tej lub cuab yeej tsis muaj txoj kev hloov kho tshiab los ntawm huab cua (OTA). Thaum pom qhov tsis zoo, tsuas yog kho tau xwb yuav yog hloov lub cuab yeej. Yog tias lub cuab yeej raug xa mus rau ntau qhov chaw (piv txwv li, cov sensors ntse hauv nroog), tus nqi thiab qhov nyuaj yuav siab heev.
5. Kev Tsis Muaj Zog Hauv Cov Txheej Txheem thiab Kev Sib Txuas Lus
Cov khoom siv IoT sib txuas lus siv ntau yam protocols, xws li MQTT, CoAP, Zigbee, Z-Wave, Bluetooth Low Energy, thiab Wi-Fi. Txhua protocol muaj qhov tsis zoo yog tias teeb tsa tsis raug lossis siv tsis ruaj ntseg. Piv txwv li:
- MQTT khiav tsis muaj TLS tso cai rau kev mloog cov ntaub ntawv thiab kev sib txuas lus.
- Bluetooth uas tsis tau teeb tsa zoo yuav raug siv rau kev nkag mus tsis tau tso cai los ntawm thaj chaw ze.
- Zigbee muaj cov teeb meem ntsig txog kev tswj hwm qhov tseem ceeb thiab kev pheej hmoo ntawm kev mloog yog tias kev encryption tsis raug siv kom raug.
Tsis tas li ntawd xwb, cov ntaub ntawv feem ntau mus ncig thoob plaws cov tes hauj lwm pej xeem lossis huab. Yog tsis muaj kev encryption kawg-rau-kawg, cov ntaub ntawv rhiab heev xws li qhov chaw, tus cwj pwm nyob hauv tsev, lossis cov ntaub ntawv kev noj qab haus huv tuaj yeem raug xau.
6. Kev Pheej Hmoo Txog Kev Ceev Ntaub Ntiag Tug thiab Kev Sau Cov Ntaub Ntawv Ntau Dhau
IoT tsis yog hais txog kev ruaj ntseg ntawm lub system xwb, tab sis kuj yog kev ceev ntiag tug. Ntau lub cuab yeej sau cov ntaub ntawv ntawm tus cwj pwm ntawm tus neeg siv: thaum ib tug neeg nyob hauv tsev, tus cwj pwm pw tsaug zog, txoj kev mus ncig, thiab txawm tias cov ntaub ntawv kaw suab. Cov ntaub ntawv no muaj nqis heev rau cov neeg tawm tsam thiab lwm tus neeg uas tab tom nrhiav kev taug qab lossis kev dag ntxias.
Qhov teeb meem yog kev pom tseeb thiab kev tswj hwm. Cov neeg siv feem ntau tsis paub tias cov ntaub ntawv twg raug sau, nws khaws cia li cas, thiab nws raug sib koom nrog leej twg. Txawm tias cov ntaub ntawv raug khaws cia kom ruaj ntseg hauv huab, tseem muaj kev pheej hmoo ntawm kev xau los ntawm tus neeg muab kev pabcuam lossis vim yog kev teeb tsa tsis raug.
7. IoT Botnets thiab DDoS Attacks
Ib qho ntawm cov kev cuam tshuam pom tseeb tshaj plaws ntawm kev ruaj ntseg IoT tsis muaj zog yog qhov tshwm sim ntawm cov botnets, xws li Mirai uas muaj npe nrov, uas tawm tsam cov khoom siv IoT nrog cov passwords tsis siv neeg thiab tom qab ntawd siv lawv los ua qhov kev tawm tsam Distributed Denial of Service (DDoS). IoT botnets tuaj yeem muaj ntau pua txhiab tus "zombie" khoom siv, ua haujlwm yam tsis muaj lawv tus tswv paub.
Kev tawm tsam DDoS los ntawm IoT botnets tuaj yeem ua rau cov kev pabcuam tseem ceeb, cov vev xaib loj, thiab txawm tias cov khoom siv hauv network puas tsuaj. Vim tias cov khoom siv IoT tau faib thoob plaws ntau lub tebchaws thiab muaj ntau tus neeg, kev taug qab thiab txo lawv yog qhov nyuaj.
8. Kev sib koom ua ke nrog Cov Txheej Txheem Tseem Ceeb thiab OT (Kev Siv Tshuab Ua Haujlwm)
Hauv kev lag luam, IoT feem ntau txuas nrog cov kab ke OT, xws li SCADA systems, PLCs, thiab cov tes hauj lwm tswj hwm hauv Hoobkas. Kev koom ua ke no txhim kho kev ua haujlwm zoo, tab sis yog tias tsis tsim kom zoo, nws tuaj yeem qhib txoj kev tawm tsam los ntawm IT network mus rau OT network. Qhov cuam tshuam mus dhau qhov xau ntawm cov ntaub ntawv thiab tuaj yeem ua rau muaj kev cuam tshuam kev ua haujlwm, kev ua tsis tiav ntawm lub tshuab, thiab txawm tias muaj kev pheej hmoo ntawm kev nyab xeeb.
Qhov teeb meem yog tias ntau lub tshuab OT qub tsis tau tsim los txuas rau hauv internet. Thaum cov khoom siv IoT niaj hnub no tau muab tso rau hauv cov chaw ib puag ncig qub, lawv tuaj yeem ua rau muaj kev tsis sib haum xeeb ntawm kev ruaj ntseg, kev faib tawm hauv network tsis muaj zog, thiab kev saib xyuas nyuaj.
9. Tsis Muaj Kev Pom thiab Kev Tswj Xyuas Cov Khoom Muaj Nqis
Feem ntau cov koom haum tsis muaj cov khoom siv IoT uas tau teeb tsa tiav lawm. Qee cov khoom siv raug yuav los ntawm cov chaw tshwj xeeb, teeb tsa los ntawm cov neeg muag khoom, lossis siv ib ntus thiab tom qab ntawd tsis nco qab. Yog tsis muaj qhov pom tseeb no, cov khoom siv tsis tau tswj hwm yuav dhau los ua qhov tsis muaj zog. Qhov teeb meem no yog qhov nyuaj dua los ntawm cov khoom siv "shadow IoT" uas txuas nrog yam tsis tau kev pom zoo los ntawm pab pawg neeg ruaj ntseg.
Yog tsis muaj lub kaw lus tswj cov cuab tam, nws nyuaj rau kev siv cov cai kev ruaj ntseg xws li kev hloov kho tshiab, kev hloov pauv daim ntawv pov thawj, kev faib ua feem, thiab kev saib xyuas tsheb khiav.
10. Tej Yam Uas Tib Neeg Ua Thiab Kev Teeb Tsa Tsis Yog
Muaj ntau yam teeb meem kev ruaj ntseg tshwm sim tsis yog vim muaj teeb meem nyuaj, tab sis vim yog kev teeb tsa tsis raug. Cov neeg siv hauv tsev yuav qhib lub koob yees duab rau hauv internet yam tsis muaj kev tiv thaiv. Cov thawj coj ntawm lub koom haum yuav qhib cov chaw nres nkoj tsis tsim nyog, siv daim ntawv pov thawj tas sij hawm, lossis khaws cov yuam sij API rau hauv qhov chaw tsis muaj kev nyab xeeb. Kev kawm txog kev ruaj ntseg thiab cov txheej txheem txheem feem ntau qeeb dua li kev siv IoT sai.
Xaus
Kev ruaj ntseg ntawm IoT network yog ib qho kev sib tw ntau yam: nws suav nrog cov khoom siv, networks, huab, protocols, kev tswj hwm cov ntaub ntawv, thiab txawm tias tus cwj pwm ntawm tus neeg siv. Qhov chaw tawm tsam dav dav, kev muaj khoom siv tsawg, kev lees paub tsis zoo, kev hloov tshiab tsawg, thiab kev faib tawm ntawm cov neeg muag khoom ua rau IoT tsis muaj zog rau kev siv tsis raug. Cov kev cuam tshuam tuaj yeem suav nrog kev nyiag cov ntaub ntawv, kev cuam tshuam kev pabcuam, thiab txawm tias kev hem thawj rau kev nyab xeeb hauv kev lag luam.
Yuav kom daws tau cov teeb meem no, txoj hauv kev ruaj ntseg ntawm IoT yuav tsum muaj txhij txhua yam: txij li kev tsim cov khoom siv ruaj ntseg thiab kev hloov kho firmware yooj yim, kev siv encryption zoo, kev faib ua pawg hauv network, kev saib xyuas tas mus li, thiab kev kawm rau cov neeg siv. Yog tias muaj lub tswv yim zoo, IoT tuaj yeem txuas ntxiv muab cov txiaj ntsig zoo yam tsis muaj kev cuam tshuam rau kev ruaj ntseg thiab kev ceev ntiag tug.
Yog tias koj xav tau, kuv kuj tseem tuaj yeem ntxiv ib ntu "kev txo qis kev siv tshuab" ntxiv (piv txwv li Zero Trust implementation rau IoT, daim ntawv pov thawj khoom siv, NAC, thiab VLAN segmentation best practices) nyob ntawm seb qhov xwm txheej: tsev ntse, chaw ua haujlwm, lossis kev lag luam.
