Security is first of all strengthened during the control of the personal identification number (PIN code). It is indeed the TotalEnergies card itself that checks the PIN code. An unscrupulous person cannot thus connect any more between the card and the cardreader to get the PIN code.
Security is then strengthened in case of loss or theft. Indeed, the card is automatically disabled when the user keys in 3 wrong PIN codes in a row whatever the ransaction is. Unscrupulous persons cannot thus key in all possible values until they find the correct one.
At last, security is strengthened with the fact that the PIN code is stored in the chip. Indeed, only the manufacturer of the chip can read the PIN code if needed. Nobody else can do that.