Update sizes-memory.md

Updates to EC series overview

Author: michamcr

articles/virtual-machines/sizes-memory.md

@@ -29,6 +29,8 @@ Memory optimized VM sizes offer a high memory-to-CPU ratio that is great for rel
 
 - The [Ebsv5 and Ebdsv5 series](ebdsv5-ebsv5-series.md) deliver higher remote storage performance in each VM size than the Ev4 series. The increased remote storage performance of the Ebsv5 and Ebdsv5 VMs is ideal for storage throughput-intensive workloads, such as relational databases and data analytics applications. 
 
+- EC-series VMs help to further further protect confidentiality and integrity while using the public cloud. There are various offerings depending on your threat model and ease of onboarding requirements. [ECasv5](ecasv5-ecadsv5-series.md) features AMD SEV-SNP, and [ECesv5](ecesv5-ecedsv5-series.md) features Intel TDX, which enable you to create confidential VMs with no code modications.
+
 - The [Ev3 and Esv3-series](ev3-esv3-series.md) feature the Intel® Xeon® 8171M 2.1 GHz (Skylake) or the Intel® Xeon® E5-2673 v4 2.3 GHz (Broadwell) processor in a hyper-threaded configuration. This configuration provides a better value proposition for most general purpose workloads, and brings the Ev3 into alignment with the general purpose VMs of most other clouds. Memory has been expanded (from 7 GiB/vCPU to 8 GiB/vCPU) while disk and network limits have been adjusted on a per core basis to align with the move to hyper-threading. The Ev3 is the follow up to the high memory VM sizes of the D/Dv2 families.
 
 - The [Ev4 and Esv4-series](ev4-esv4-series.md) runs on 2nd Generation Intel® Xeon® Platinum 8272CL (Cascade Lake) processors in a hyper-threaded configuration, are ideal for various memory-intensive enterprise applications and feature up to 504 GiB of RAM. It features  the [Intel® Turbo Boost Technology 2.0](https://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html), [Intel® Hyper-Threading Technology](https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html) and [Intel® Advanced Vector Extensions 512 (Intel AVX-512)](https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html). The Ev4 and Esv4-series don't include a local temp disk. For more information, see  [Azure VM sizes with no local temp disk](azure-vms-no-temp-disk.yml).