Google discloses mail security survey report, reveals the actual situation of famous Japanese domains

ByYuri Samoilov

Our deployed Gmail security team has released e-mail security reports over the past few years. Although we found that e-mail security globally improved from surveys in the past several years, it is clear that Japan's famous domain is lagging behind the response to encryption.

Google Online Security Blog: New Research: Encouraging trends and emerging threats in email security
https://googleonlinesecurity.blogspot.jp/2015/11/new-research-encouraging-trends-and.html

Google conducted a survey on the security of mails sent and received between December 2013 and October 2015. According to the survey results, the percentage of mail encrypted from Gmail's address other than Gmail sent to Gmail has increased from 33% to 61%.


Protocol for encrypting mail and delivering it safely when sending and receiving mail "Transport · Layer · Security(TLS) "from Gmail's address to the non-Gmail address has increased from 60% to 80%.


In addition, 94% of all mail sent to Gmail has received some sort of mail authentication. In other words, from the global point of view, it can be said that mail security has improved considerably.


Google publishes a report that calculates the percentage of mail encryption by region, but from that report you can see well that Japanese famous domains are not yet compatible with encryption.

Safer email - Transparency Report - Google
http://www.google.com/transparencyreport/saferemail

81% of mails sent from Gmail to other mail providers are encrypted.


Conversely, only 57% of the messages sent from other mail providers to Gmail are encrypted.


The following is a description of the encrypted ratio of domains frequently sent and received mail with Gmail.


When we narrow down the region to Asia, we will introduce "Japan" as "rakuten.co.jp" "docomo.ne.jp" "ezweb.ne.jp" "softbank.jp" "softbank.ne.jp" "yahoo.co.jp" It was highlighted that famous domains are hardly compatible with encryption. Even though the security of e-mail has improved worldwide, it is still in Asia including Japan.