Sɛnea Wobɛbɔ Credit Cards a Ɛwɔ Wo Wallet Mu Ho Ban denam RFID Blocking Card so
May 07, 2026
Gyae nkrasɛm bi .
Bere biara a wobɛbɔ wo credit card wɔ checkout terminal no, wode RFID mfiridwuma, wireless signal koro no ara a, wɔ tebea a ɛnteɛ mu no, ɔhɔho betumi ahwehwɛ a ɔmfa ne nsa nka wo sika kotoku da no redi dwuma. Ne neamanneɛbɔ a ɛfa nnipa a wowia nnipa ho no boro ɔpepem 1.1 wɔ U.S. nkutoo wɔ afe 2024 mu, sɛnea wobɛbɔ wo nkrataa ho ban no ntease nyɛ nea ɛho hia kɛse da.
RFID blocking card yɛ akwan a ɛyɛ mmerɛw a wobɛfa so de ahobammɔ aka ho no mu biako, nanso ɛho hia sɛ wobɛpaw ne sɛnea wode besi hɔ. Wɔkyerɛw akwankyerɛ yi fi RFID yɛfo bi a wɔde blocking cards akɔma wɔn a wɔkyekyɛ nneɛma wɔ Germany, UK, Saudi Arabia, Brazil, ne Russia fi afe 2006. Yɛka nea ɛyɛ adwuma, nea ɛnyɛ adwuma, ne nnwuma mu akyinnyegye a ɛsɛ sɛ wuhu ansa na woanya anaa woatɔn saa nneɛma yi ho asɛm.
Sɛnea RFID Skimming Yɛ Adwuma Ankasa
Credit ne debit card a ɛwɔ contactless tumi no kura RFID chip ketewaa bi a ɛnam radio asorɔkye so di nkitaho wɔ 13.56 MHz. Sɛ wobɔ sɛ wobɛtua a, chip no de atɔdeɛ koodu a wɔabɔ no kokoam pɛnkoro-mena. Ɛyɛ ntɛmntɛm, ɛyɛ mmerɛw, na ɛkɔ so yɛ default.
Nea ɛhaw adwene no? Wɔ nsusuwii mu no, akenkanfo biara a ɛne no hyia betumi ama saa wireless signal koro no ara ayɛ adwuma, na ɛnyɛ nea ɛwɔ checkout counter no nkutoo.
Wɔ2009 DefCon hacker nhyiamu, ahobanbɔ nhwehwɛmufoɔ hyehyɛɛ RFID akenkanfoɔ a wɔde mfoninitwa afiri abɔ mu na wɔdii nkonim scanee wɔn a wɔbaa ase no adansedie nkrataa a RFID-atumi ayɛ adwuma, a aban ananmusifoɔ a wɔfiri FBI ne Department of Defense ka ho, firii akyirikyiri anammɔn mmienu kɔsi mmiɛnsa. Nnansa yi ara, nhwehwɛmufo Fran Brownɔyɛɛ ɔyɛkyerɛ wɔ DefConsɛ aguadi akenkanfo a wɔayɛ mu nsakrae (HID MaxiProx 5375) betumi atrɛw scanning kwan no mu akɔ akyiri asen sɛntimita kakraa bi a wɔahyɛ da ayɛ no, na adu bɛyɛ anammɔn abiɛsa.
Saa ɔyɛkyerɛ ahorow yi di adanse sɛ mfiridwuma a wɔde hwehwɛ RFID data no wɔ hɔ na ɛyɛ adwuma. Asɛmmisa ankasa ne mpɛn dodow a wɔde di dwuma ankasa wɔ ɔkwan a ɛyɛ hu so.
Nokware a Ɛyɛ Nokware: Asiane no Yɛ Ankasa Dɛn?
"Asiane ho nhwehwɛmu nyɛ abien. Susuw ho sɛnea wususuw seatbelt ho no: ebia worenhia wɔ akwantu biara mu, nanso ɛka a wɔbɔ wɔ bi a wubenya ho no sua araa ma ntease wom ɔkwan biara so."
Eyi ne baabi a ɛyɛ nuanced, na baabi a akwankyerɛfo dodow no ara gyae mfaso.
Roger Grimes, data-driven defence asɛmpakafo wɔ KnowBe4, anyaa wɔkae wɔ baguamsɛ RFID siw nneɛma ho nhia efisɛ wiase nsɛmmɔnedi ankasa-wiase nsɛmmɔnedi biara nni hɔ a wɔasi so dua a anka wobesiw ano. Identity Theft Resource Center no aka gyinabea a ɛte saa ara ho asɛm. Yɛate saa akyinnyegye ahorow yi afi akuw a wɔkra nneɛma no hɔ. Yɛn mmuae: ɛnyɛ wɔn a wogyaee adetɔ a wɔyɛ attuned kɛse wɔ ahunahuna nsase ankasa ho no.
Ntease pa bi wɔ saa adwenem naayɛ no akyi. Nnɛyi credit cards a ɛnyɛ contactless no mfa wo din, address a wode tua ho ka, anaa CVV code nkɔma. Wɔde encrypted one-time transaction codes di dwuma, a ɛkyerɛ sɛ data a wɔatwa no wɔ boɔ a ɛsua koraa sɛ wɔbɛsan de adi dwuma. Sɛ nkrataa pii a enni nkitahodi bom tra sika kotoku mu a, wɔn nsɛnkyerɛnne a ɛka bom no ma ɛyɛ adebɔ mu ade"kaad a ɛbɔ" nkɛntɛnsoɛno ma ɛkame ayɛ sɛ akenkan a ɛho tew ntumi nyɛ yiye.
UK Sikasɛm ho nsɛmkyerɛe sɛ nsisi a wɔmfa wɔn ho nhyɛ mu no yɛ nea wɔhwere wɔ kaad mu nsisi nyinaa mu 2.9% pɛ, na ɛyɛ fã ketewaa bi.
Enti dɛn nti na ɛsɛ sɛ yɛhaw yɛn ho wɔ ahobammɔ ho koraa?
Efisɛ asiane ho nhwehwɛmu nyɛ nneɛma abien. FTC nyaa credit card nsisi ho amanneɛbɔ 449,032 wɔ afe 2024 mu, ɛyɛ identity theft category kɛseɛ a ɛyɛ 43.9%.Nsisi a wɔhweree nyinaa boroo dɔla ɔpepepem 12.5, up 25% from 2023. Bere a nsisi dodow no ara fi intanɛt akwan so no, asase no nyinaa ma honam fam ahwɛyiye a ɛho ka sua-yɛ nea ntease wom koraa, titiriw ma wɔn a wɔtaa tu kwan, wɔn a wɔkɔ, anaa obiara a okura aban ID ahorow a RFID chips wom.
Susuw ho sɛnea wususuw ahobammɔ bɛlt ho no: ebia worenhia wɔ akwantu biara mu, nanso ɛka a wɔbɔ wɔ bi a wubenya ho no sua araa ma ntease wom ɔkwan biara so. Wɔ obiara a okura kaad ahorow pii a enni nkitahodi, titiriw bere a ɔrekɔ adwuma, wimhyɛn akwantu, anaa adwuma akwantu mu no, RFID kaad a esiw kwan ne ɔfrɛ a ɛfata.
Dɛn Ne RFID Blocking Card na Ɔkwan Bɛn so na Ɛyɛ Adwuma?
RFID blocking card yɛ credit card-kɛseɛ afiri a wode bɛhyɛ wo sika kotokuo a ɛwɔ hɔ dada no mu ka wo sikatua kaad ho. Ɛma anyinam ahoɔden bi ba a ɛmma akenkanfo a wɔbɛn wo no ntumi nhwehwɛ chips a ɛwɔ wo kaad ahorow mu no.
Passive Shielding a Wɔde Yɛ Adwuma
Ɛyɛ adwuma te sɛ Faraday afiri. Nneɛma a ɛma nsu fa mu (a mpɛn pii no ɛyɛ aluminium anaa kɔbere) a ɛtwetwe radio asorɔkye a ɛba anaasɛ ɛdan no wɔ kaad no mu. Ɛhwehwɛ tumi biara, nanso sɛnea etu mpɔn no gyina honam fam su so.
Jamming a ɛyɛ nnam
Microchip a wɔde ahyɛ mu no twa ahoɔden fi ɔkenkanfo no ankasa sɛnkyerɛnne mu na ɛsan bɔ sɛnkyerɛnne bi a ɛkyerɛ sɛ ɛbɛbɔ. Battery biara nhia, na ahobammɔ kwan no yɛ pɛpɛɛpɛ (~2 cm).
Wɔ adetɔfoɔ ne B2B dwumadie nyinaa mu no, E-field blocking cards a ɛyɛ nnam ne deɛ ɛyɛ den a wɔpaw. Passive shielding de conductive ink anaa dade foil laminates a bere kɔ so no delaminate, ntɛmntɛm wɔ wim tebea a ɛyɛ nwini anaa sika kotoku a ɛyɛ nsu daa na edi dwuma. Active cards nni conductive layer a ɛtumi sɛe; huammɔdi kwan biako pɛ ne chip a ɛsɛe fi honam fam nkɛntɛnso. Wɔ yɛn adeyɛ sɔhwɛ mu no, active cards block akenkan wɔ full rated distance akyi asram 18 simulated wallet wear, bere a passive-only samples kyerɛɛ signal leakage wɔ asram 12 mu.
Sɛ wopɛ mfiridwuma ho nkyerɛkyerɛmu a emu dɔ a, hwɛ yɛn asɛm a ɛfasɛnea RFID blocking cards bɔ nsɛm ho banbɔ ho ban. Hwɛ yɛn nso13.56MHz RFID Blocking Card afiri krataafa ma nkyerɛkyerɛmu a edi mũ.
Sɛnea wobɛhwɛ sɛ wo blocking card no yɛ adwuma
Fa to kaad a enni nkitahodi anim na kura abien no nyinaa mu wɔ tap-to-tua terminal so. Ɛsɛ sɛ sika a wotua no di nkogu. Sɛnea ɛbɛyɛ a, fa smartphone biara a ɛtumi yɛ NFC- a ɛwɔ akenkanfoɔ app (te sɛ NFC Nnwinnadeɛ): sɛ app no nsan mfa data biara mma berɛ a worehwehwɛ fa blocking card no so a, shielding no yɛ adwuma.
RFID Blocking Card vs. Wallet vs. Sleeve: Emu na Ɛsɛ sɛ Wopaw?
Eyi ne ɔkwan a eye sen biara a wobɛfa so abɔ credit card a obiara nni nkitaho ho ban a woremma nneɛma nyɛ den dodo: te nea ɔkwan biara a wobɛfa so no yɛ yiye ankasa ase, ne baabi a edi nkogu.
| Anoyie | Mfaso ahorow | Cons |
|---|---|---|
| RFID Sikakorabea | Ne nyinaa-wɔ-ade biako a ɛyɛ mmerɛw, adwumayɛfo hwɛ. | Limited coverage (mpɛn pii no anim nkutoo), betumi anya gaps. |
| RFID Nsa a Wɔde Yɛ Adwuma | Ahobammɔ a wɔde asi wɔn ani so, a ɛyɛ teateaa yiye. | Bulky bere a wɔde di dwuma mpɛn pii no, ɛbrɛ, ɛma kwan a wɔfa so kɔ hɔ brɛoo. |
| Kaad a Wɔde Siw Ano | Zero suban nsakrae, multi-kaad a wɔde tua ho ka, ɛka-a ɛyɛ nea etu mpɔn. | Ɛbɔ ho ban wɔ ~2cm radius nkutoo mu (ɛhwehwɛ sɛ wɔde si hɔ). |
BiRFID a wɔde siw sika kotoku anowɔ nneɛma a ɛbɔ ho ban a wɔde afra ne ntama mu, na ɛbɔ biribiara a ɛwɔ mu ho ban wɔ nsusuwii mu. Wɔ nneyɛe mu no, ɛkame ayɛ sɛ bere nyinaa na sika kotoku a wɔabɔ no abien a ɛwɔ kaad panel atitiriw abien no wɔ kyɛm wɔ akyi anim nkutoo. Kaad a ɛwɔ mfinimfini slots mu no tra layers abien a wɔmmɔ ho ban a enni kataso biara ntam. Gye sɛ nea ɔyɛe no kyerɛ kotoku ahorow a wɔabɔ ho ban mmiako mmiako, fa no sɛ nsonsonoe wɔ hɔ.
RFID a wɔde siw nsateaa anofa nneɛma a wɔabɔ ho ban kyekyere nkrataa mmiako mmiako. Wɔde ahobammɔ a wɔde asi wɔn ani so ma nanso wɔde pii ka ho, ɛhwehwɛ sɛ wɔde kaad hyehyɛ mu na woyi fi mu bere biara, na ɛbrɛ ntɛmntɛm kakra.
BiRFID a wɔde siw kwante sika kotoku biara a wowɔ dedaw mu, ɛbɔ kaad pii ho ban wɔ ne ~2 cm kwan mu bere koro mu, na enhia nsakrae biara wɔ wo da biara da suban mu. Ɛyɛ ɔkwan a ɛho ka yɛ-a ɛho ka sua sen biara. Commercial blocking cards taa tu $1–3 wɔ unit biara mu wɔ wholesale dodow mu, na ɛyɛ mmerɛw sɛ wɔde bedi dwuma wɔ nsenia so ama branded giveaways, adwumayɛfo kits, anaasɛ retail resale.
Sɛ worehwehwɛ adwumakuw akwaaba kits anaa channel distribution a, blocking cards boro wallets wɔ axis biara so: unit ka a ɛba fam, SKU complexity biara nni hɔ, zero consumer behavior change required. Sɛ́ ebia wubehia kaad biako anaa abien no gyina slot dodow ne sɛnea wɔahyehyɛ so, a wɔaka ho asɛm wɔ ɔfã a edi hɔ no mu. Sɛ wopɛ nsateaa sɛ ɔkwan foforo a, hwɛ yɛn ntotoho a ɛfasɛnea RFID blocking card nsateaa yɛ adwuma ne bere a ɛsɛ sɛ wɔde di dwuma.
Sɛnea Wode RFID Blocking Card Besi Wo Sikakorabea Yiye
Dibea ho hia sen sɛnea nneɛma dodow no ara a wɔahyehyɛ no kyerɛ no.
Wɔn a wɔde di dwuma dodow no ara de blocking card no gu abɔnten slot mu a wosusuw sɛ ɛyɛ adwuma te sɛ telefon case. Ɛnyɛ saa. E-afuw no hyerɛn tẽẽ wɔ kaad no anim, ɛnyɛ abɔnten fi ano. Dibea ho hia sen sɛnea nneɛma dodow no ara a wɔahyehyɛ no kyerɛ no.
Sɛ wopɛ sika kotoku a wɔabɔ no abien
Fa blocking card no to mfinimfini slot no mu, wɔ wo credit ne debit card ntam.
Sɛ wopɛ sika kotoku a wɔabɔ no abiɛsa
Fa kaad abien a wɔde siw kwan di dwuma: biako wɔ mfinimfini fã, biako bɛn akyi ano na ama panel no akata so koraa.
Wɔ obi a ɔwɔ kaad a ɔyɛ teateaa fam no, mpɛn pii no, kaad biako a wɔde siw kwan a wode besi wo kaad a wɔaboaboa ano no anim anaa akyi no dɔɔso, efisɛ wɔakyekyɛ kaad no nyinaa mu denneennen.
Mfomso ahorow a wɔtaa di a ɛsɛ sɛ wɔkwati:Sɛ wode blocking card no bɛhyɛ kotoku bi a ɛne wo credit card ahorow ntam kwan ware mu a, edi atirimpɔw no so nkonim. Mfa no sɛ RFID blocking card biako kata cards a ɛwɔ zippered compartment a ɛyɛ soronko anaa abɔnten ID window mu. Shielding no di bɛn a ɛbɛn akyi, na ɛnyɛ sika kotoku ahye.
Sɛ wopɛ anammɔn-anammɔn-anammɔn a wɔde besi hɔ ho akwankyerɛ a mfonini ahorow wom a, hwɛ yɛnRFID shielding card a wɔde si hɔ ne sɛnea wɔde di dwuma ho akwankyerɛ.
Nea Akwankyerɛfo Dodow no ara Renka Nkyerɛ Wo: 125 kHz Blind Spot
RFID blocking card dodow no ara bɔ ho ban wɔ 13.56 MHz nkutoo, na ɛma 125 kHz ɔdan kwan so kaad, a nokwarem no ɛyɛ mmerɛw kɛse sɛ cloning no, nni ahobammɔ koraa. Nea enti a ɛho hia ni.
Standard RFID blocking cards kata 13.56 MHz, ɛdi credit cards, debit cards, NFC-enabled passports, ne transit passes ho dwuma. Nanso wɔnkata 125 kHz low-frequency cards, a wɔtaa de yɛ adan a wɔde kɔ mu badge, kar dan apon a wobue, ne ahobammɔ nhyehyɛe dedaw so.
125 kHz kaad no yɛ mmerɛw ankasa sɛ wɔbɛyɛ clone sen credit card. Nsɛnkyerɛnne a ɛba fam-frequency hyɛn nneɛma mu ntɛmntɛm (susuw sɛnea bass tu fa afasu mu bere a wɔabɔ treble ano), na 125 kHz access card pii nni encryption kakraa bi anaasɛ enni bi.
Sɛ wode sikatua kaad ne ɔdan mu kwan ho badge nyinaa gu sika kotoku koro mu a, te ase sɛ RFID a wɔde siw kwan a wɔahyɛ da ayɛ no bɔ kan no ho ban nanso ɛnyɛ nea etwa to no. Syntek na ɛyɛ nneɛmadual-frequency RFID NFC blocker cards a ɛkata 13.56 MHz ne 125 kHz bands nyinaa so. Sɛ wo use case no bi ne sɛ wobɛkyekye access cards anaa legacy proximity systems a.
Beyond the Blocking Card: Ahobammɔ Nhwehwɛmu a Edi Mu
RFID blocking card di vector pɔtee biako ho dwuma. Sɛ wopɛ sɛ wosiw credit card nsisi ano yie a, fa digyital gyinaesie hyehyɛ mu: real-bere mu atɔ ho kɔkɔbɔ denam wo sikakorabea app no so, ne issuer-ahyɛdeɛ pɔtee te sɛ Visa anaa Amex adetɔ ahoɔhare anohyetoɔ, a cardkurafoɔ dodoɔ no ara mfa nyɛ adwuma da. Fa tokenized mobile payments (Apple Pay, Google Pay) di dwuma wɔ honam fam kaad taps so bere a ɛbɛyɛ yiye. 92% wɔ nnwuma a wɔamma ho kwan wɔ afe 2024 mu no fa kaad a wɔanwia honam fam ho, a ɛkyerɛ sɛ dijitaal ani a wɔwɛn ho hia te sɛ honam fam ahobammɔ.
FAQ
Asɛmmisa: So RFID blocking cards yɛ adwuma ampa?
A: Yiw. Wɔasɔ kaad a wɔde E-field jamming a ɛyɛ nnam di dwuma no ahwɛ wɔ ahobanbɔ nhyiam ase na wɔasi so dua sɛ ɛhaw scanning a wɔmma ho kwan wɔ 13.56 MHz. Nnɛyi credit card nso akyekye-wɔ encryption mu, enti blocking card de supplementary layer ka ho. Adwumayɛ mu nsonsonoe a ɛda active jamming ne passive shielding ntam no yɛ kɛse. Wɔ wiase sika kotoku tebea ankasa mu no, nneɛma a ɛnyɛ adwuma- nkutoo kyerɛ ɔsɛe a wotumi susuw wɔ afe biako mu.
Asɛmmisa: Bere tenten ahe na RFID blocking card di?
A: Active E-field cards a enni emu battery di mfe 5–9 wɔ sɛnea wɔde di dwuma daa ase a egyina yɛn production lifecycle sɔhwɛ so wɔ Syntek. Charging biara nni hɔ, nsiesie biara nni hɔ, afã horow a ɛkɔ baabiara nni hɔ.
Asɛmmisa: So RFID blocking cards betumi abɔ me passport ho ban?
A: Yiw. Blocking cards a ɛyɛ adwuma wɔ 13.56 MHz no bɔ NFC chip no ho ban wɔ nnɛyi e-pasport mu. Hyɛ no nsow sɛ akwantu tumi krataa a wɔde mae wɔ afe 2007 akyi no ayɛ-wɔ RFID kyɛm dedaw wɔ wɔn nkataso mu. Sɛ wopɛ akwantu ho ahobammɔ foforo a, fa kaad a wɔde siw kwan si wo akwantu tumi krataa nkyɛn wɔ w’akwantu krataa a wode kura mu, titiriw wɔ wimhyɛn gyinabea ne ɔmanfo kar a wontumi nkwati sɛ wobɛbɛn ahɔho no.
Q: So wobetumi ayɛ RFID blocking cards custom-branded ama nnwumakuw anaa aguadidan mu de adi dwuma?
A: Yiw. Syntek de OEM ne ODM customization a edi mũ ma: nneɛma (PVC ma durability, PLA ma eco-conscious branding, dua composite ma premium positioning), soro wie (glossy, matte, frosted), ne tintim (offset, dijitaal, silk -screen). MOQ fi ase wɔ 500 asinasin ma stock designs; adwini a wɔayɛ no sɛnea wɔpɛ no taa de mena wɔ adwuma nnafua 15–20 mu wɔ adanse a wɔapene so akyi. Bisa nhwɛsode ahorow a wontua hwee na woasusuw ho ansa na wode wo ho ahyɛ mu.
Asɛmmisa: So RFID skimming yɛ asiane ankasa wɔ afe 2026 mu?
A: Wiase nsɛm ankasa-a wɔakyerɛw ho asɛm da so ara yɛ nea ɛntaa nsi, na abenfo gye asiane a mfaso wɔ so no ho akyinnye. Nanso wɔada mfiridwuma no adi wɔ baguam, nnipa a wowia wɔn ho no kɔ soro afe biara, na nkrataa a wɔde siw kwan no bo yɛ nea ennu dɔla abiɛsa wɔ ne dodow mu. Wɔ wɔn a wɔkyekyɛ nneɛma ne nnwumakuw a wɔtɔ nneɛma fam no, bo a ɛsom ho nyansahyɛ no yɛ mmerɛw: insurance a ɛho ka sua-a ɛko tia mmerɛwyɛ bi a wɔada no adi wɔ mfiridwuma mu.
Bɔ Wo Kaad, anaa Wo Adetɔfo Kaad Ho Ban
Sɛ́ ebia worehwehwɛ RFID blocking cards ama wo product line, woresusuw ho sɛ branded giveaways, anaasɛ worebɔ w’ankasa wo sika kotoku ho ban no, mfitiasede no yɛ ade koro: paw active E-field technology wɔ 13.56 MHz, fa si hɔ yiye, na fa no sɛ layer biako wɔ ahobammɔ kwan a ɛtrɛw mu.
Syntek ayɛ RFID blocking cards firi afe 2006 wɔ nnwuma anum mu, a ISO 9001 adansedie ne export fekubɔ a ɛfa 30+ aman. Nhwehwɛmu nhwɛsode ahorow a wontua hwee wɔ hɔ.
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