During the first half of 2020, 1 in 12 SonicWall customers with
DPI-SSL turned on (8.46% average) saw malware on encrypted
traffic. While the total number of encrypted malware attacks is
down 32% over this time last year, a closer look shows some
Aside from a large slide between January and February and
a tiny dip in May, these attacks have been on an upward
trajectory — sometimes a steep one.
Moreover, the total amount of encrypted malware in June,
378,736, is not only the highest number of encrypted threats
recorded in all of 2020, it’s also higher than at any point in the
latter half of last year.
Most regions echo the overall drop in encrypted threats, but
Asia was a huge exception. Encrypted threats in Asia didn’t just
rise, they skyrocketed, resulting in an increase of 175%. Most
of this was driven by the month of January, which racked up
roughly 10 times the average number of encrypted threat hits
as the rest of 2020.
WHAT ARE ENCRYPTED THREATS?
In simple terms, SSL (Secure Sockets Layer) can create
an encrypted tunnel for securing data over an internet
connection. TLS (Transport Layer Security) is a newer,
more secure version of SSL.
While TLS and SSL provide legitimate security benefits
for web sessions and internet communications,
cybercriminals are increasingly using these encryption
standards to hide malware, ransomware, zero-day
Traditional security controls, such as legacy firewalls,
lack the capability or processing power to detect,
inspect and mitigate cyberattacks sent via HTTPS traffic,
making this a highly successful avenue for hackers to
deploy and execute malware within a target environment.
See how the experts at CisCom can help you with this and more!
Blog content for the 2020 SonicWall Cyber Threat Report series provided by our partners at SonicWall.