computer network affected by malware from phishing emails

An attack on computers at Grassfield High School has students and parents concerned. Chesapeake Public Schools says a malware attack is responsible for taking the school off the grid. The school district said a virus entered their network through phishing emails sent to employees. Only a couple of divisions have been affected, and it’s not a system-wide outage. However, it impacted Grassfield High School in a big way. Classes heavily relying on technology were affected, but the others carried on as usual.

“Economics is all computer-based learning. We couldn’t do that, but we were able to play board games for the entire class. That was pretty fun, but we didn’t learn at all, which was a problem,” said Rhys Lamb, an 11th grader. Another student, Meadow Gallant, said she relies on computers for a few classes. “We used them for math for notes, and I use them most days in my 4th block for marketing to do research,” she said.

Some students and parents told News 3 students are getting behind because one of the periods where they do schoolwork, one lunch, was canceled since computers weren’t working. They also said teachers couldn’t update grades, and if students’ cell phones were connected to the school WiFi, which is highly encouraged, they could be subject to the virus. “Of course, my kids are going to be using up all the data on their phones because they’re at a school without WiFi,” said Jo Anne Gallant.


A spokeswoman with the school district admitted not having technology can be hard for 21st-century students, but teachers and staff are being creative. The IT department has contained the virus and is hoping to get everything back to normal soon. The malware was found on single computers at several other schools, but no other schools were impacted the way Grassfield High School was. Some students say they are concerned about the projects they are working on.

“In my AP seminar class, we’ve been doing presentations over the past few days, and we aren’t able to present anymore on the SmartBoard,” said Lamb. SmartBoard is a way to project things from a computer onto a board in the classroom. Lamb said she’s hoping everything is back to normal Friday because that’s when she presents the project she’s been working on for a few weeks. Computer networks can be categorized into three large classes.

Local area network (LAN)

A nearby vicinity community remains restrained in an enormously small area. It is beneficial in imparting services to a small range of human beings. Networks in small places of work and homes are some examples of LAN. Small office and Home networks also are peer-to-peer networks in which minimal useful resource is used and each purchaser stocks their resources with different workstations in the network. Another LAN is a purchaser-server community where every customer remains linked to the server and every other. Servers in patron-server networks are of various capacities. There are two varieties of purchaser-server networks:

Single-provider servers performing unmarried undertaking, say, as a report server; and. Print server performing more than one responsibility, say, a file server, print server, conducting calculations and presenting statistics to the purchaser based on the result of the calculations. Ethernet cables, Wireless networks, or different wires inclusive of electricity traces or smartphone lines can be used to connect computers in LAN.

Wide area network (WAN)

A wide style of sources is deployed in WAN. These networks span not best over the huge domestic place but also the world over. The connectivity of computers in the branch offices of a company agency is an example of WAN. But the best WAN on earth is the Internet, a community of numerous smaller networks. Besides the Internet, another substantial WAN is Public Switched Telephone Network, which converges rapidly with Internet technology.

Wireless networks (WLAN, WWAN)

A wireless network is primarily based on records transmission over sets of radio transceivers. Basically, it’s miles the same as a LAN or a WAN. The only distinction is that there are no wires among hosts (clients) and servers. These networks are beneficial for places where putting in stressed-out networks is both too pricey or inconvenient. It makes use of IEEE media access protocols for LANs. For connecting nodes over large distances, satellite communications of numerous kinds or cell radio or wireless nearby loop are in trend. But speed and great of facts transmission vary in large part relying on the method of conversation used.


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