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How L1 and L2 CPU Caches Work, and Why They’re an Essential Part of Modern Chips

How L1 and L2 CPU Caches Work, and Why They’re an Essential Part of Modern Chips
The beautiful Pentium M die, with lots and lots of cache

Ever been curious how L1 and L2 cache work? We’re glad you asked. Here, we deep dive into the structure and nature of one of computing’s most fundamental designs and innovations.

The post appeared first on .

How L1 and L2 CPU Caches Work, and Why They’re an Essential Part of Modern Chips

(image)

Ever been curious how L1 and L2 cache work? We’re glad you asked. Here, we deep dive into the structure and nature of one of computing’s most fundamental designs and innovations.

The post appeared first on .

How L1 and L2 CPU Caches Work, and Why They’re an Essential Part of Modern Chips

New Samsung security camera hacks show yet again why it’s important to have a good firewall

New Samsung security camera hacks show yet again why it’s important to have a good firewall
Simple and slightly smart, but not very secure

The saga of hacks made on Samsung’s popular SmartCam security cameras are a perfect illustration of why your network defense must start with a well-managed firewall. It has become impossible to rely on IoT device makers to create completely secure devices, and unworkable to have to keep them all up to date even when patches are provided.…

The post appeared first on .

New Samsung security camera hacks show yet again why it’s important to have a good firewall

(image)

The saga of hacks made on Samsung’s popular SmartCam security cameras are a perfect illustration of why your network defense must start with a well-managed firewall. It has become impossible to rely on IoT device makers to create completely secure devices, and unworkable to have to keep them all up to date even when patches are provided.…

The post appeared first on .

New Samsung security camera hacks show yet again why it’s important to have a good firewall

Microsoft leaks Secure Boot credentials, shows why backdoor ‘golden keys’ can’t work

Microsoft leaks Secure Boot credentials, shows why backdoor ‘golden keys’ can’t work
linux-boot-windows-81
Microsoft accidentally shipped a security policy that destroys its own Secure Boot system — and demonstrates in the process why security that relies on so-called “golden keys” can never work.

Microsoft leaks Secure Boot credentials, shows why backdoor ‘golden keys’ can’t work

(image)
Microsoft accidentally shipped a security policy that destroys its own Secure Boot system — and demonstrates in the process why security that relies on so-called “golden keys” can never work.
Microsoft leaks Secure Boot credentials, shows why backdoor ‘golden keys’ can’t work