A-A+
The last sentence of the third paragraph tells
问题详情
The last sentence of the third paragraph tells us that ______.
A．any organization"s networks may be at risk of security breaches
B．current technology cannot safeguard against unauthorized access to online networks
C．information security should be a pressing concern for Internet commerce
D．organizations must secure their networks and data against unauthorized use
参考答案
正确答案：D
解析：细节理解题。根据文章最后一段最后一句中"must control the access to ensure that…”可知作者告诫人们“必须保护网络数据不被外来使用破坏或干扰”，因此，D选项为正确答案。A、B和C选项均未在文中提到。
