A secure keyboard video mouse, KVM, system (400, 500, 600, 700) comprising: a remote desktop area comprising: a user keyboard; a user pointing device; at least one user display; and a user secure KVM remote controller-indicator (402, 502, 602, 702) comprising: at least one KVM selector; and an interface microcontroller (404, 504, 604, 704) configured: to receive user KVM selection from said at least one KVM selector, and to securely transmit commands indicative of user KVM selection; and a secure KVM switch (406, 606, 706) connected to said secure KVM remote controller-indicator (402, 502, 602, 702), wherein: said secure KVM switch (406, 606, 706) is configured: to be connected to at least two host computers (3a-d), to prevent data leakages between said at least two host computers, to isolate said at least two host computers (3a-d), to receive said securely transmitted commands indicative of user KVM selection from said interface microcontroller in said secure KVM remote controller-indicator, and to select one of said at least two isolated host computers in response to said received commands, wherein said secure KVM remote controller-indicator (402, 502, 602, 702) comprises at least one anti-tampering sensor connected to an anti-tampering controller, characterized in that said anti-tampering controller is configured to perform an irreversible function disabling said secure KVM remote controller-indicator (402, 502, 602, 702) when said anti-tampering sensor is activated by an attempt to tamper said secure KVM remote controller-indicator (402, 502, 602, 702). a remote desktop area comprising: a user keyboard; a user pointing device; at least one user display; and a user keyboard; a user pointing device; at least one user display; and a user secure KVM remote controller-indicator (402, 502, 602, 702) comprising: at least one KVM selector; and an interface microcontroller (404, 504, 604, 704) configured: to receive user KVM selection from said at least one KVM selector, and to securely transmit commands indicative of user KVM selection; and at least one KVM selector; and an interface microcontroller (404, 504, 604, 704) configured: to receive user KVM selection from said at least one KVM selector, and to securely transmit commands indicative of user KVM selection; to receive user KVM selection from said at least one KVM selector, and to securely transmit commands indicative of user KVM selection; a secure KVM switch (406, 606, 706) connected to said secure KVM remote controller-indicator (402, 502, 602, 702), wherein: said secure KVM switch (406, 606, 706) is configured: to be connected to at least two host computers (3a-d), to prevent data leakages between said at least two host computers, to isolate said at least two host computers (3a-d), to receive said securely transmitted commands indicative of user KVM selection from said interface microcontroller in said secure KVM remote controller-indicator, and to select one of said at least two isolated host computers in response to said received commands, wherein said secure KVM remote controller-indicator (402, 502, 602, 702) comprises at least one anti-tampering sensor connected to an anti-tampering controller, said secure KVM switch (406, 606, 706) is configured: to be connected to at least two host computers (3a-d), to prevent data leakages between said at least two host computers, to isolate said at least two host computers (3a-d), to receive said securely transmitted commands indicative of user KVM selection from said interface microcontroller in said secure KVM remote controller-indicator, and to select one of said at least two isolated host computers in response to said received commands, to be connected to at least two host computers (3a-d), to prevent data leakages between said at least two host computers, to isolate said at least two host computers (3a-d), to receive said securely transmitted commands indicative of user KVM selection from said interface microcontroller in said secure KVM remote controller-indicator, and to select one of said at least two isolated host computers in response to said received commands, wherein said secure KVM remote controller-indicator (402, 502, 602, 702) comprises at least one anti-tampering sensor connected to an anti-tampering controller, characterized in that said anti-tampering controller is configured to perform an irreversible function disabling said secure KVM remote controller-indicator (402, 502, 602, 702) when said anti-tampering sensor is activated by an attempt to tamper said secure KVM remote controller-indicator (402, 502, 602, 702).