Malware infection rates are increasing steadily in both mobile networks, according to a new Nokia Threat Intelligence report released this week. Specifically, the infection rate averaged 1.08 percent in the second half of 2016 for mobile networks, which was an increase of 63 percent from the first half of 2016.

Nokia said the data from the report is aggregated across several customer networks that have deployed the Nokia NetGuard Endpoint Security product, which detects malware in endpoint devices, including mobile phones, laptops, notepads, and Internet of Things (IoT) devices.

NetGuard tracks more than 100 million end devices and found that the infection rate in mobile networks reached a high of 1.35 percent of devices in the month of October.

Smart phone infections accounted for 85 percent of the infections detected in the mobile network, and an overall monthly smart phone infection rate averaged 0.90 percent, representing an 83 percent increase over the first half of 2016.

On the fixed network side, the monthly infection rate averaged 10.7 percent in the second half of 2016, which was down from 12 percent in the first half, and down from 11 percent in late 2015. Although overall threats did decrease, Nokia said there was still plenty of high-level threats such as bots, rootkits, keyloggers, and banking Trojans. Those types of threats remained steady at around six percent for the second half of 2016.

On the IoT front, Nokia said that it saw evidence of the Mirai botnet, which was well documented as the cause of three of the largest distributed denial of service (DDoS) attacks in history, including the one that took down many high profile sites, like Netflix, Github, and Twitter.

Nokia wasn’t the only company to see an increase in DDoS attacks. According to AT&T’s 2016 Cybersecurity Insights report, in the past year, 73 percent of companies suffered at least one DDoS attack.

The AT&T report also said that most cyberattacks today are “known” or common threats, meaning that they are preventable if companies take the right precautions.