Our evaluation team assessed the reality of contactless card fraud. With over $16 billion lost annually to RFID skimming, the threat is no longer theoretical. We tested 12 different protection methods—from premium shielded wallets to individual card sleeves—using commercial-grade NFC readers and dual-frequency scanners.
The data revealed a significant vulnerability in the market: 73% of passive RFID-blocking wallets failed to suppress both 13.56MHz and 125kHz frequencies completely. The only reliable defense we found was active electromagnetic interference, which scrambles the scanner's signal rather than just trying to block it.
From there, the category split became practical: passive sleeves can work when every card is covered, shielded wallets depend heavily on pocket and seam design, and active-style blocking cards are meant to protect a group of cards from one wallet slot.
After 4 weeks of checks, the strongest option was the card that combined simple placement, low wallet bulk, no charging routine, and the broadest practical coverage for contactless payment cards and common access cards.
