Trend: Profit-motivated threats such as identity theft and spyware will dominate threats in 2005 and beyond, motivating antivirus vendors to expand detection and repair capability. 2005 will see an increase incidence of virus on mobile platforms such as smart phones, PDAs, and automobile on-board computers. Virus propagation to continue to be robust in 2005 but expect to see a decline in 2006 as a result of more widespread use of antivirus software and shift in focus for budding virus writers. Largely effective spam-filtering strategies will expand to cover wireless devices and instant messaging in 2005.”]
Source: https://www.csoonline.com/article/2118005/the-changing-threat-landscape.html