RFID Passport Protection: Real Threat or Unnecessary Caution?
TOCA · KNOWLEDGE
By TOCA Editorial · 2026 · 6 min read
Since 2005, German passports have contained an RFID chip. Ever since, the debate has continued: how easy is it to read the data stored on it? Is a protective sleeve worthwhile, or unnecessary scaremongering? The answer is more nuanced than most articles admit.
What is stored on the chip?
The electronic passport, known as the ePassport, contains a contactless RFID chip embedded in the cover. It stores the printed data from the data page in digital form: name, date of birth, nationality, passport photo and passport number. Newer passports also include fingerprints.
That sounds like a significant data package. And it is. The question is: how well is it protected?
The built-in protection: BAC and PACE
Modern passports are not unprotected. The German Federal Office for Information Security (BSI) has mandated several security mechanisms for German passports.
The most important is called Basic Access Control (BAC), supplemented in newer passports by PACE. The principle: the chip can only be read if the reader has first optically scanned the machine-readable zone on the data page. A key is calculated from this zone that unlocks the connection to the chip.
In practice this means: someone who merely has your passport nearby, without opening it, cannot fully read the chip. They would need to know or optically capture the data page first.
"The chip is not an open book. But it is not a closed one either."
Where the protection has its limits
BAC and PACE protect well, but not in every situation.
Older passports. Passports issued before 2007 use weaker versions of BAC. Researchers have shown that these can be exploited under certain conditions.
Passive signal. Even without fully reading the data, an RFID reader in proximity to the passport can detect that a chip is present and capture its unique identifier (UID). This is not enough for identity theft, but it does enable tracking a person without their knowledge.
Controlled contexts. At border controls or hotel check-ins you open your passport. In these moments the chip is accessible to authorised readers, but also to an unauthorised device positioned nearby that could intercept the connection.
"The risk with passports is not a Hollywood scenario. It is smaller and more specific than often portrayed, but it exists."
What a protective sleeve actually does
An RFID-blocking passport sleeve physically shields the chip as long as the passport is inside and the sleeve is closed. That means no signal, no connection, no passive tracking, no data reading.
This is not complex technology. It is a conductive shielding layer that blocks electromagnetic signals in the RFID frequency range. Passive, no battery, no electronics. As long as the sleeve is closed, the chip is silent.
Important: the sleeve only protects when the passport is inside it. At passport control, hotel check-in or when showing your document, you remove it, and the chip becomes accessible again. That is correct and unavoidable. The sleeve protects the moments in between: in your bag, in your luggage, in transit, in everyday life.
Who is protection most relevant for?
For most people the risk with a passport is low. Those who meet the following criteria have more reason for caution:
Frequent travel to high-risk regions. In certain countries or environments, more sophisticated data interception attempts are more likely than in everyday European settings.
Journalists, activists, human rights workers. Anyone travelling in sensitive contexts has a heightened interest in ensuring their travel profile cannot be reconstructed.
Older passport. Passports issued before 2007 have weaker security mechanisms. A protective sleeve makes more sense here.
General data minimisation. Anyone who prefers not to leave unnecessary data traces will find a protective sleeve a simple and affordable measure.
The honest assessment
The risk with a modern passport is real but not dramatic. The built-in security mechanisms are solid. Mass identity theft via RFID passports in everyday life is not a documented mass phenomenon.
At the same time, passive tracking via the chip identifier is a documented mechanism. And in certain contexts, for certain people, in certain countries, reading passport data is a real attack scenario.
"A protective sleeve costs little, weighs nothing and does not restrict how you use your passport. The effort-to-protection ratio is good."
The TOCA Passport Shield is a slim RFID-blocking passport sleeve made from X-PAC® high-performance laminate. Passive, no battery, no electronics. Designed for everyday use and travel. Find out more.