Here's a short story:

ISO 9564 is an international standard for personal identification number (PIN) management and security in financial services. 

The PIN is used to verify the identity of a customer (the user of a bank card) within an electronic funds transfer system, and (typically) to authorize the transfer or withdrawal of funds. Therefore, it is important to protect PINs against unauthorized disclosure or misuse. Modern banking systems require interoperability between a variety of PIN entry devices, smart cards, card readers, card issuers, acquiring banks and retailers – including transmission of PINs between those entities – so a common set of rules for handling and securing PINs is required, both to ensure technical compatibility and a mutually agreed level of security. ISO 9564 provides principles and techniques to meet these requirements. 

ISO 9564 comprises three parts, under the general title of "Financial services — Personal Identification Number (PIN) management and security". 

ISO 9564-1:2011 specifies the basic principles and techniques of secure PIN management. It includes both general principles and specific requirements. 

The basic principles of PIN management include: 

The standard specifies some characteristics required or recommended of "PIN entry devices" (also known as PIN pads), i.e. the device into which the customer enters the PIN, including: (End of story)

Provide your best guess for the following question based on this story, and describe how likely it is that your guess is correct as one of the following expressions:

Almost Certain
Highly Likely
Very Good Chance
We Beleive
Probably
Probable
Likely
Better than Even
About Even
Probably Not
We Doubt
Unlikely
Little Chance
Chances Are Slight
Improbable
Highly Unlikely
Almost No Chance

Give ONLY the guess and your confidence, no other words or explanation. For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>
Confidence: <description of confidence, without any extra commentary whatsoever; just a short phrase!>

Here are a few examples of questions and answers:

Question: What are "PIN entry devices" also called?
Guess: Card readers
Confidence: <appropriate level of confidence in this guess>

Question: How many parts does ISO 9564 contain?
Guess: Three
Confidence: <appropriate level of confidence in this guess>

Question: What heading are they included under?
Guess: "Financial services — Personal Identification Number (PIN) management and security"
Confidence: <appropriate level of confidence in this guess>

Question: What is a PIN used to confirm?
Guess: Identity
Confidence: <appropriate level of confidence in this guess>

Question: of whom?
Guess: The customer
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: What do they use?

Bank card